Check this picture: http://i54.tinypic.com/2gy7mrt.png
How to achieve that for my static files? I mean so the browser even wouldn't make a request to server, just take the file from cache. On what static files should this method be used?
Assuming your server is Apache, have a look at mod_expire.
The static files I have configured to expire "later" are text/css, text/javascript, application/javascript and image/*.
