Matt Cutts is an Engineering Director at the department of antispam at Google. In this 3 minute TEDTalk, he explained that one day he discovered that his life was stuck in a rut. That was the first day he decided to do something new during the next 30 days i.e. he planned on setting small goals that he could perform over the next 30 days.
So you know,if you want add o get rid of a habit, try this over the next 30 days.
I will start tomorrow. When are you going to start?