Towards the end of the day (with the option to choose your own time), send a reminder of all the tasks that are due today but are uncompleted (both with and without due times).

I use the Daily Digest to show me what I need to do today when I wake up, and I would like a second, similar review towards the end of the day. With the Daily Digest, I prefer to have a longer list of tasks (tasks due today and tomorrow, tasks staring today), but for the end-of-the-day review I just want to make sure I haven't forgotten anything important (so just uncompleted tasks due today).

It might also be nice to have the option to see all the tasks I've completed today.