diff --git a/paramecio/citoplasma/httputils.py b/paramecio/citoplasma/httputils.py
index baff310..bfd71f4 100644
--- a/paramecio/citoplasma/httputils.py
+++ b/paramecio/citoplasma/httputils.py
@@ -44,7 +44,6 @@ class GetPostFiles:
                 #Clean csrf_token
                 
                 s['csrf_token']=''
-                s.save()
                 
 
         else:
diff --git a/paramecio/citoplasma/keyutils.py b/paramecio/citoplasma/keyutils.py
index 2ffe7bf..9f92dfa 100644
--- a/paramecio/citoplasma/keyutils.py
+++ b/paramecio/citoplasma/keyutils.py
@@ -1,6 +1,17 @@
-from hashlib import sha512
+from hashlib import sha512, sha256
+from base64 import b64encode
 from os import urandom
 
 def create_key_encrypt(n=10):
     
     return sha512(urandom(n)).hexdigest()
+
+def create_key_encrypt_256(n=10):
+    
+    return sha256(urandom(n)).hexdigest()
+
+def create_key(n=10):
+    
+    rand_bytes=urandom(n)
+    
+    return b64encode(rand_bytes).decode('utf-8')
diff --git a/paramecio/citoplasma/lists.py b/paramecio/citoplasma/lists.py
index b892f5f..c52c5e9 100644
--- a/paramecio/citoplasma/lists.py
+++ b/paramecio/citoplasma/lists.py
@@ -92,8 +92,6 @@ class SimpleList:
         self.order_by=self.order_defaults[ order_k ]
         
         self.s['order']=order_k
-        
-        self.s.save()
     
     def obtain_field_search(self):
         
@@ -115,8 +113,6 @@ class SimpleList:
             self.change_order[field_k]=1
         else:
             self.change_order[field_k]=0
-            
-        self.s.save()
         
         self.order_field=self.s['order_field']
         
@@ -182,5 +178,9 @@ class SimpleList:
         
         self.model.yes_reset_conditions=True
         
-        return self.t.load_template('utils/list.phtml', simplelist=self, list=list_items, pages=pages)
+        listing=self.t.load_template('utils/list.phtml', simplelist=self, list=list_items, pages=pages)
+        
+        list_items.close()
+        
+        return listing
     
diff --git a/paramecio/citoplasma/mtemplates.py b/paramecio/citoplasma/mtemplates.py
index a863dfb..4871204 100644
--- a/paramecio/citoplasma/mtemplates.py
+++ b/paramecio/citoplasma/mtemplates.py
@@ -266,8 +266,6 @@ def set_flash_message(message):
     
     s['flash']=message
     
-    s.save()
-    
 def show_flash_message():
     
     message=""
@@ -281,8 +279,6 @@ def show_flash_message():
     
     s['flash']=''
     
-    s.save()
-    
     return message
     
 standard_t=ptemplate(__file__)
diff --git a/paramecio/citoplasma/sessions.py b/paramecio/citoplasma/sessions.py
index 460e3c6..9bbe132 100644
--- a/paramecio/citoplasma/sessions.py
+++ b/paramecio/citoplasma/sessions.py
@@ -1,6 +1,8 @@
 #!/usr/bin/python3
 
-from bottle import request
+from itsdangerous import JSONWebSignatureSerializer
+from paramecio.citoplasma.keyutils import create_key_encrypt, create_key_encrypt_256, create_key
+from bottle import request, response
 
 try:
 
@@ -10,14 +12,91 @@ except:
 
     class config:
         cookie_name='paramecio_session'
+        key_encrypt=create_key_encrypt_256(30)
+        
+
+class ParamecioSession:
     
+    def __init__(self):
+            self.session=request.environ.get(config.cookie_name)
+            #self.token=request.get_cookie(config.cookie_name)
+    
+    def get(self, name, default_value):
+        
+        if not name in self.session:
+            self.session[name]=default_value
+            request.environ[config.cookie_name]=self.session
+            request.environ[config.cookie_name]['save']=True
+
+        return self.session[name]
+
+    def __getitem__(self, key):
+        
+        return self.session[key]
+        
+    def __setitem__(self, key, value):
+        
+        self.session[key]=value
+        request.environ[config.cookie_name]=self.session
+        request.environ[config.cookie_name]['save']=True
+        
+    def __delitem__(self, key):
+        
+        del self.session[key]
+        request.environ[config.cookie_name]=self.session
+        request.environ[config.cookie_name]['save']=True
+
+    def __contains__(self, key):
+        
+        if key in self.session:
+            return True
+        else:
+            return False
+
+    def __iter__(self):
+        return self.session
+
+    def __str__(self):
+        return self.session.__str__()
+
+    def keys(self):
+        return self.session.keys()
+        
+        
+
+def generate_session():
+    
+    random_text=create_key_encrypt_256(30)
+    response.set_cookie(config.cookie_name, random_text)
+    request.environ[config.cookie_name]={'token': random_text}
 
 def get_session():
     
+    if config.cookie_name in request.environ:
+        
+        return ParamecioSession()
+    else:
+        return None
+    
+    """
     try: 
         
-        return request.environ.get(config.cookie_name)
+        # Check if session was loaded, if loaded, get cache
+        
+        #return request.environ.get(config.cookie_name)
+        code_session=request.get_cookie(config.cookie_name)
+        
+        try:
+        
+            #with fopen(config.session_opts['session.data_dir']) as signed_session:
+            pass
+                
+
+        except:
+            
+            return {}
     
     except:
         
         return {}
+    """
diff --git a/paramecio/cromosoma/formsutils.py b/paramecio/cromosoma/formsutils.py
index e3a372c..ee8c468 100644
--- a/paramecio/cromosoma/formsutils.py
+++ b/paramecio/cromosoma/formsutils.py
@@ -44,8 +44,6 @@ def show_form(post, arr_form, t, yes_error=True, modelform_tpl='forms/modelform.
         
         s['csrf_token']=create_key_encrypt()
         
-        s.save()
-        
         pass_values_to_form(post, arr_form, yes_error)
         
         return t.load_template(modelform_tpl, forms=arr_form)
@@ -74,7 +72,6 @@ def csrf_token():
     
     s=get_session()
     s['csrf_token']=create_key_encrypt()
-    s.save()
     
     return '<input type="hidden" name="csrf_token" id="csrf_token" value="'+s['csrf_token']+'" />'
 
diff --git a/paramecio/index.py b/paramecio/index.py
index 60f8142..6702615 100644
--- a/paramecio/index.py
+++ b/paramecio/index.py
@@ -1,10 +1,13 @@
-import os, sys, traceback, inspect
+import os, sys, traceback, inspect, resource
 from importlib import import_module
-from bottle import route, get, post, run, default_app, abort, request, static_file, load
+from bottle import route, get, post, run, default_app, abort, request, response, static_file, load
 from settings import config, modules
-from beaker.middleware import SessionMiddleware
+#from beaker.middleware import SessionMiddleware
 from mimetypes import guess_type
 from paramecio.cromosoma.webmodel import WebModel
+from itsdangerous import JSONWebSignatureSerializer
+from paramecio.citoplasma.keyutils import create_key_encrypt, create_key_encrypt_256, create_key
+from paramecio.citoplasma.sessions import generate_session
 
 #Prepare links for static.
 #WARNING: only use this feature in development, not in production.
@@ -47,8 +50,8 @@ else:
         pass
 """
 
-def print_cookie():
-    pass
+def print_memory():
+    print(resource.getrusage(resource.RUSAGE_SELF).ru_maxrss)
     #print(request.cookies)
 
 routes={}
@@ -119,18 +122,76 @@ if config.ssl==True:
 
 app = application  = default_app()
 
-#app.add_hook('before_request', print_cookie)
+app.add_hook('before_request', print_memory)
 
-app.add_hook('after_request', WebModel.close)
+#app.add_hook('after_request', WebModel.close)
 
 if config.session_enabled==True:
     #Create dir for sessions
     
+    key_encrypt=config.key_encrypt
+    
     if 'session_data_dir' in config.session_opts:
         if not os.path.isdir(config.session_opts['session.data_dir']):
             os.makedirs(config.session_opts['session.data_dir'], 0o700, True)
 
-    app = SessionMiddleware(app, config.session_opts, environ_key=config.cookie_name)
+    def load_session():
+        
+        code_session=request.get_cookie(config.cookie_name)
+        
+        if code_session==None:
+            # Send cookie
+            generate_session()
+        else:
+            
+            # Check if file exists
+            
+            if os.path.isfile(config.session_opts['session.data_dir']+'/session_'+code_session):
+                with open(config.session_opts['session.data_dir']+'/session_'+code_session, 'r') as f:
+                    
+                    try:
+                    
+                        s = JSONWebSignatureSerializer(key_encrypt)
+                        session_dict=f.read()
+                        request.environ[config.cookie_name]=s.loads(session_dict)
+                        request.environ[config.cookie_name]['token']=code_session
+                    
+                    except:
+                        
+                        # Clean fake session
+                        
+                        try: 
+                            os.remove(config.session_opts['session.data_dir']+'/session_'+code_session)
+                        
+                        except:
+                            
+                            pass
+                        
+                        generate_session()
+                
+            else:
+                request.environ[config.cookie_name]={'token': code_session}
+
+    def save_session():
+        
+        save_session=request.environ[config.cookie_name]
+        if 'save' in save_session:
+            del save_session['save']
+        # Here define the session type, if memcached, save data in memcached
+        
+            with open(config.session_opts['session.data_dir']+'/session_'+save_session['token'], 'w') as f:
+                s = JSONWebSignatureSerializer(key_encrypt)
+                json_encode=s.dumps(save_session)
+                f.write(json_encode.decode('utf8'))
+        
+        #request.environ[config.cookie_name]['save']
+    #def save_session()
+    
+    app.add_hook('before_request', load_session)
+    app.add_hook('after_request', save_session)
+    #def 
+
+    #app = SessionMiddleware(app, config.session_opts, environ_key=config.cookie_name)
 
 def run_app(app):
 
diff --git a/paramecio/modules/admin/index.py b/paramecio/modules/admin/index.py
index ba49020..75dea13 100644
--- a/paramecio/modules/admin/index.py
+++ b/paramecio/modules/admin/index.py
@@ -237,7 +237,7 @@ def login():
                     response.set_cookie('remember_login', random_text, expires=timestamp, secret=key_encrypt)
                 #else:
                     #print(user_admin.query_error)
-            s.save()
+            #s.save()
             
             return {'error': 0}
         else:
@@ -299,7 +299,7 @@ def logout():
         del s['login']
         del s['privileges']
         
-        s.save()
+        #s.save()
     
     if request.get_cookie("remember_login", secret=key_encrypt):
            
diff --git a/paramecio/modules/lang/index.py b/paramecio/modules/lang/index.py
index 9f8f214..093c413 100644
--- a/paramecio/modules/lang/index.py
+++ b/paramecio/modules/lang/index.py
@@ -12,8 +12,6 @@ def index(lang):
         
         s['lang']=lang
         
-        s.save()
-        
         redirect_url=request.headers.get('Referer')
         
         if redirect_url!=None:
diff --git a/paramecio/settings/config.py.sample b/paramecio/settings/config.py.sample
index 85d26b0..82685f6 100644
--- a/paramecio/settings/config.py.sample
+++ b/paramecio/settings/config.py.sample
@@ -50,38 +50,14 @@ cookie_name = 'paramecio.session'
 
 #More simple sessions. Save the session in a file in ./sessions directory.
 
-"""
+
 session_opts = {
     'session.type': 'file',
     'session.cookie_expires': False,
-    'session.data_dir': './sessions',
-    'session.auto': False, # Is better use s.save by performance
-}
-"""
-
-# More fast methods for beaker sessions.
-
-# Method for save info in cipher cookie. Don't use it if you want save many info in the session (cookies have 4k size limit normally). The default. 
-
-session_opts = {
-    'session.type': 'cookie',
-    'session.cookie_expires': False,
-    'session.data_dir': './sessions',
-    'session.auto': False, # Is better use s.save by performance
-    'session.validate_key': 'im smoking fool' #Key Generated by paramecio cmd using os.random, more secure if you want add or change random characters
+    'session.data_dir': './sessions'
 }
 
-# Method for save info in a memcached server.
-
-"""
-session_opts = {
-
-    'session.type': 'ext:memcached',
-    'session.auto': False, # Is better use session.save by performance
-    'session.url': '127.0.0.1:11211'
-
-}
-"""
+key_encrypt="im smoking fool"
 
 cache_session_opts = {