E.B.
We just got back from WDW and I bought those cheap $1 notebooks with Disney characters on the front, used ribbon to attach a sharpie and wah-lah. When we got to the park I wished I'd just bought the books the park sells with the space for the pics. My son who is 3 didn't really care about the autographs. My daughter is almost 6 and wanted everyone's but didn't want to wait in line for too long. Then when they got home, the were tossed aside. Something ended up spilling all over them and the pages stuck to the table and so I tossed them. No one has asked me about it since.
Next trip, I don't think we'll do autographs.