I installed the StayFocusd extension a week ago, and set 20 minute limits for Hacker News and Facebook. From that alone, my productivity has gone up tenfold.

I installed the StayFocusd extension a week ago, and set 20 minute limits for Hacker News and Facebook. From that alone, my productivity has gone up tenfold. The amount of time I wasted wandering the internet was ridiculous! In short: I highly recommend StayFocusd for Chrome users.