Just one more little item that I think is really worth getting, but most people don’t know about…. go to a place with drafting supplies, and pick up an erasing shield. This is a little metal plate with various shaped holes in it. You can place it so that what you want to be erased is in a hole – but not the line touching the line you want to erase. So you can erase a line without erasing another part of your picture!
(obviously only for pencil drawings!)
Also, get a good quality white eraser, not those pink icky ones! – if you can get a drafting eraser, that would be the best!