Good on ya!
I've done some geochaching myself while travelling to different states. It's a good way to see some out of the way sights.
I also use the geocache website to find likely places to detect when I'm in an unfamiliar area.
If you take an item your supposed to leave an item. Me and my son went out looking for some while my wife was out shopping. We took a Fossil key chain from one because my wife collects key chains. When she got home she said "I bought a Fossil purse". I said "your not going to believe what we found for you".