One of the biggest drains on my productivity is the (sometimes worrying) impulse to check email, check Facebook, check Twitter…
After a bit of searching, I found an application that is ironically named “SelfControl” for Mac. SelfControl lets you set a list of web domains to blacklist, then set an amount of time that you would like to block access to these domains. Closing the program, deleting the program, or restarting your computer will not undo the timer.
I have been using SelfControl for a few days and it has been great.
For Windows users I found Cold Turkey but I have not tried it.
Both applications are free to download.