Re: What do caddies use for an on course notebook?
Not sure if this is exactly what you're looking for, but I used to carry a memo pad with me everywhere so I could write myself memos anytime I needed to. Eventually I stopped and started using my iTouch, but I loved that memo pad while I used it. I'm guessing you want something similar.
The pad was basically pocket-sized and had a padded front/back, rather than the thin paper/cardboard fronts that get chewed up easily. I can't find an image online, but here's an image of the paper pads they sell
to go inside of it. I got my from Wal-Mart for around $5 I think, and last I checked they still sold it in their office supplies section. The company is Ampad, the model class is Embassy. It's just a padded, rectangular little black book with gold "MEMO" on the front.