I spend too much time dressing up doodles. It's better to do more and larger pics - 8.5x11 minimum. Most of my recent stuff has been on 4x5 inch scrap paper/whatever paper was lying around.
Don't be afraid to redraw. I got a simple light table a few years ago, and I didn't know what I was missing. No more need to mash a drawing out on one sheet.
Next step - get a Cintiq 21UX. I used them at school and I can't recommend them enough.