I'm sort of accident-prone with this, so I need at least something to stop it from becoming lost forever. Right now, I have a note with my name and phone number enclosed in the 'notes' section (I have 5th-gen and 2nd-gen Nanos that I carry around, will soon get a 3rd-gen Classic). Would people usually read this, or should I do something different? I've heard that some people use tracking devices on theirs, would that be practical to do with mine? I've heard that some people put tracking devices on theirs, so would this be practical to do?