Here's part of the stuff you can edit about a task:
Time estimate: none
Postponed: 0 times
You can also prioritize tasks, view tasks due today or due this week. There are features where it can remind you via email that you have a task about to become due. There's something about emailing yourself and it will automatically generate a task for that activivty.
Maybe this will make it easier to keep track of to do lists. I guess you could make a grocery list...I'ma do that right now... Usually to do lists get buried on my desk under other to do lists and notes to myself on scrap paper. I could be more productive??