sozobe,
I wouldn't tip a NYT carrier extra for the weekend delivery -
that's not right. Send one check and they should share.
If you're strapped then I'd give 5 Dollars only.
As for the mailman, I do give him 20 Dollars, and they're
not allowed to take anything above that anyway. 10 Dollars
will do just fine too - it's the thought that counts and showing
some appreciation, it doesn't need to be a downpayment
on a house
Hm, I never see the garbage collectors, they come while
I'm at work and here they just drive the truck and the
garbage cans are collected with these foreclift arms and
automatically loaded into the truck. If one of the bags
falls out, they just leave it. So I don't think a tip is in order here.