After seeing several "lost flybox" posts, I decided it might not be a bad idea to put a name, address, and phone number with the boxes I carry on the water. After going into a minipanic in Idaho after I'd lost an O box loaded with around 500 flies, the decision was finalized and today I printed up and labelled 20+ boxes with bright fluorescent pink labels.
BTW, The box I thought I'd lost had actually missed an inside wader pocket and slid down the inside of my waders to a spot near my left foot, but because my leg was sort of numb from the cold water, I didn't feel it. I didn't figure this out though until I'd backtracked and check bushes and asked another flyfisher if a box had floated by, wasting valuable fishing time.
I'd actually been meaning to do this for a long time.
How many of you label your boxes?