Comment by adam_albrecht

Looks really nice but I've found that apps like this aren't incentivizing enough to be useful in the long term. I use Beeminder, which isn't nearly as nice-looking or user-friendly as Steaks appears to be, but its financial incentives work phenomenally well. If you're serious about keeping (or breaking) a habit, you check them out. And competitors, you should copy some of their features.