How many ways we can pass the variable through the navigation between the pages?

At least 3 ways ways we can pass the variable through the navigation between the pages:
1. Put the variable into session in the first page, and get it back from session in the
next page.
2. Put the variable into cookie in the first page, and get it back from the cookie in
the next page.
3. Put the variable into a hidden form field, and get it back from the form in the
next page.