What do you store in Cookies?

Question

Django

There are two questions:
1) What do you usually store in Cookies?
2) What can and cannot be stored in Cookies?
PS . Give an example (if not difficult) of using Cookies in practice.

Answer 1

user
id csrf token

Answer 2

are you taking the exam?
in 2015, cookies have two options:
1) sessions phpfaq.ru/sessions (a paradise for advertisers, google analytics and other "hello, are you from city N?")
2) user settings, changing which cannot harm the site: for example, you cannot store a password or other information there, i.e. , in fact, for the css of the site, "remember the login so as not to enter", etc.
modern boys use cookies like this: socfishing.ru

Answer 3

sessions, site settings such as color scheme, the desired type of display of records is
not something that can be saved in the database for this user

Answer 4

I keep information there, whether the pop-banner has already been shown during this minute or not.