I use Beeminder to track a few goals. Some of these are quite essential for my wellbeing, some aren’t (like my commitment to write these daily notes).
It took me a really long while to realise one area where Beeminder really shines: It functions perfectly as a trigger for you to notice things. That goal you said you’d stick to? Well, you haven’t. And it won’t just fade into background, it will take 5 bucks from your wallet.