I've been bragging recently about how many obstacles I've overcome with Linux as a whole. There's many things I've been doing to Ubuntu to make it extremely fast and flexible for my uses. I also happen to be one of those people that forgets absolutely everything.
I very frequently decide I'm going to do something later that isn't something big and forget about it, or forget about a homework assignment. I've tried using those note taking and memo apps. I found that tomboy was pretty good. Unfortunately, not good enough.