I often use tasksmash. It’s built on three principles. It’s social so
people can watch you mess up, it’s got a don’t break the chain aspect, and
it’s built on the minimum task habit, 3-5 major things to do in a day,
don’t sweat the details too much.
In truth I’ve just been using it to track stuff I already track in
beeminder because the notifications I get when I don’t enter any data and
break the chain mess with my psyche.