I know that this has been covered before but decided to bring it up again for those who are starting out in flyfishing. The next time you get a solicitation in the mail which includes a set of glossy pre-printed address labels, before tossing them out, grab your vest (or chest-pack) and pull out all your fly boxes. Open each one and stick one of those labels inside. At some point you are going to drop a box and if there is a label inside you have at least some chance of getting it back.

Think about it - if you found a fly-box with a label inside wouldn't you get a hold of the fellow fly-fisher and return it?