Stop checking Facebook all the time.

New day gives us a lot of fantastic opportunities. This is a really simple but powerful tool. Just input a webpage that you want to block and add time interval for that. Store that bookmark and start using it instead of the original one. If you compulsively checking that page warning popup will appear. Great timesaver! Remember to check advanced options too.
http://keepmeout.com/en/facebook/O2fba2/