Never thought of the postal worker (we pick up at a community mailbox area) but I do give one to our newspaper lady (home delivery). I just wrap the box of chocolates (making sure they fit in the box) and write to our newspaper delivery person on the tag from our family. She takes them. I imagine the same would work for a postal worker. I would leave it in your own box and don't put it to be mailed because they just dump that box in a big bag and don't even look at it.