Developing (or having someone help you develop) organizing skills is a great thing. If organizing information, etc., isn't your strength, then have someone help you set up a solid system which you can follow.
Also, I find having some kind of PDA with a reminder alarm on it's calendar is most helpful. So I don't forget anything. I just bring it with me and it dings when I need to do something.
I recommend those both.
I'm sure there's lists of helpful hints (I recall seeing some myself a few years back) on the net regarding ADHD and organizing, since a big problem with ADHD, too, is EDF.
This also looks like a very helpful site to go over with organization and study methods:
http://www.studygs.net/
Also, finding a tutor who has a solid background in good study skills can help, too. Sometimes learning HOW to study is harder than studying the materials, themselves.
Hope this helps a bit, newchum.