Love it. The only thing I wish is that completed tasks would be shown somewhere in strike-through. Half the fun of using a to-do list is basking in the feeling of accomplishment when tasks are complete.

Not only is seeing your completed tasks fun, it's a psychological motivator to keep checking things off. I'd consider it a crucial feature of any task list!

I loved it too when I first used it and then decided to add a couple of my own features. The result:

http://dougstodo.com/

how do you keep it synced with yourself wherever you're currently working from? Does cookie associated with each visitor have a unique id or something? Or is it a joke?