Well, too late for not picking up a coffee habit, but I'm glad that I broke my youthful Diet Coke addiction. Turns out Calvin was right: it tastes like battery acid if you aren't in the habit.
I'm glad I don't have either a prepared food or dining out habit. I know many lovely people who do, and can see how something so convenient could be so tempting, but I still slog away chopping veggies, baking bread, and roasting roasts the same old way, and I imagine I'm saving money and doing something healthy that way.
I think this could count as a habit, so I'm glad we don't have a TV hook up. We still watch shows, but it's more intentionally sitting down to watch something than channel surfing to kill time. Of course, I have the internet habit to make up for it, but I'm glad I freed up time for this vice by curbing the other one!
How about a habit that I wish I didn't have? Farmville. So addicting. Oh well, I get a sense of accomplishment every time I get a little crop mastery sign. Yes, I too can click little squares repetitively.