Picture this: You sit down at your computer to write a report that’s due the next day. You fire up a web browser to check the company intranet for a document. For a split second, you glance at your home page. “Wow!” you say. “The Red Sox won in the 17th inning! Let me see what happened…”

Three hours later, no report’s been written, and you want to throw yourself out of the window.

Sound familiar?

It’s too easy to scamper down the rabbit hole of the Web when you’ve gt pressing tasks to work on. At one point or another, you’ve probably burned a few hours clicking around Wikipedia, Amazon.com, eBay, Flickr, YouTube, or Google News when you had a deadline to meet. Surfing efficiently is an exercise in discipline and sometimes outright abstinence. This hack uses the LeechBlock Firefox extension to blank out certain web sites during times you’re supposed to be working. […]

[A] particularly determined procrastinator might say, “If it’s a block I can disable, I’ll do it.” If you find yourself blocked from a time-wasting site that you insist on visiting (and to hell with your deadline), you could go into LeechBlock’s options and undo the block. However, LeechBlock comes with a clever feature built to prevent just that. In LeechBlock’s options dialog, check off “Prevent access to options for this block set at times when these sites are blocked.”

Gina Trapani, Upgrade Your Life: The Lifehacker Guide to Working Smarter, Faster, and Better, Indianapolis, 2008, pp. 140-141, 146