I know exactly how you feel... I take quick notes on those sticky back thingies, only to lose them because they stick to things they weren't supposed to stick to in the first place. And if they don't get inadvertently stuck somewhere they shouldn't have, I often can't figure out what I wrote, or why I wrote what I did. Gosh.
And then I've got my 'fancy' notebook where I take note of things which are of interest to me... my notes don't get lost, but the sense of the notes do. Plus, my drawings which are supposed to help me identify and remember things don't look a bit like they're supposed to... And then I think to myself "Why did I even bother?"