I'm fairly new to this so I'm not sure of all the rules yet. I plan on getting more finds, when the weather gets better, before hiding my first cache. But I've been at least thinking about what I'd like to do when the time comes. I was sitting here looking at my bookcase, thinking about how badly it needs culled, and started thinking about using it in a cache. Would it be acceptable (or more importantly, appreciated) to do a book cache and/or a CD cache? I read in some other threads about using CD's, the impression I got is that it is ok as long as the CDs are original and not copies. These would be factory CD's with the original packaging. Books would be paperbacks in good shape and I would have to find a way to ensure water tightness so they aren't ruined. I was thinking either sealed bucket or .50 cal can. I don't know if I would make them take a book/cd, leave a book/cd or just take one and exchange for regular swag. Any suggestions?