What's a bad habit that you've been trying to break for years?

I admit I am one of those individuals who abuse a Q-TIP, inserting it in the ear-canal further than it should ever have been designed to venture. The sensation is great, and addictive. I have been addicted to this habit on and off again over the years. Some days are good, some are bad. Would you care to share your bad habit(s), or what you consider to be a bad habit (others may find it to be a good habit)?