We tip errybody we can. Bring water to the yard guy and trash pickups. Tip for donut and coffee peeps. Sammich makers if possible. People tip me and the wife occasionally at work and we make excellent money. Got a $500 tip for a day after the bill. WTF would I not share the good fortune.
Christmas time can be pretty dang good in the dogshit biz. I've had a $400, a $300, a few $200 and a several $100. Kinda weirds me out when they go all-out like that, but I don't bitch. Miss Manners suggests an amount equal to one service, so 15-25 depending. 90% don't at all and I definitely don't hold it against them, but I confess to be more willing to go the extra mile for those who do. My mailman gets a $20 Sonic card. We don't have any other services.