July 17th is my 4 year anniversary with my boyfriend and I have absolutely no idea what to get him. We will be away camping at the time so it has to be something that I will be able to hide from him. I was just wondering if anyone has any ideas at all. I don't know what kind of stuff would be good to buy a 20 year old guy for a 4 year anniversary. We have already done the picture frame with a picture of us (first year), bought each other the movie we saw on our first date (second year) and last year we had no money so we just went to dinner.