I used to give cookies to my mailman when I lived in the house, but I knew him. He always stopped to say hello. I knew what was going on in his life and he knew what was going on in mine.
For those that give to their garbage men, how do you give it to them? We never saw our garbage men and I'm sure if an envelope was on our trash can it would get thrown into the trash.
No. I have never really met any of these people. Mailman, I just happened to be home one time when mail was being delivered. Said thank you. No idea if it's the same person every time.