Small Tasks works well -

It allows you to jot down those niggly little bits, emphasis on little. Personally, I would prefer (1) to be able to add notes sometimes, and (2) an Option to change the timing between reminders for a specific item (ie. change from one minute between reminders - to 5 min, 10 min, etc.). All-in-all, does exactly what it purports to in its site.

WenchyOne about SmallTask - Simple To-Do List, v1.1.1