A habit you wish you didn't have

Where do I begin!

I guess the main habit I wish I didn't have was allowing myself to be repeatedly distracted. Constant email checking, Twitter, random Wikipedia surfing, and so on. When properly focused I can do anything from make a video game to write a novel, but such hyper-productive periods are few and far between. Hopefully my new strategy of focusing on only a very small number of tasks that need to be done will help me gain the focus I desperately want.