We leave them cookies or some other food item (not homemade) or a $20 gift certificate to a store.

My mail carrier brings me the mail that gets addressed to my mom at her old house (same neighborhood, unique last name) and once returned my work badge that had been stolen out of my car and dumped in the blue mailbox several blocks away. I always tip her and sometimes give small gifts.

$50 cash.

Anonymous wrote:Don not do this and put them in a bad position. USPS personnel are not allowed to accept cash or cash equivalent (gift cards). They can only accept small non-cash or cash equivalent gifts with value less than $20.

https://about.usps.com/postal-bulletin/2012/pb22349/html/cover_025.htm

They do accept gifts.

We’ve had the same guy for 6 years. He always stops to chat and gives my dog treats. I always give him a $25 gift card to the local grocery store, a Home Depot or Target. This year he’s retiring so I might give more.

We have several people who deliver our mail. We don't know all of them and we don't tip. They're well paid and have good benefits (which I support and vote for accordingly).