So I just ordered some Thai food, and found out the delivery guys don't get the 2$ delivery fee - about a dollar of it gets redistributed for gas.
I used to pay 20%, but included the 2$ fee in it. In hindsight I've mostly been tipping 1 dollar(I live alone and order in a lot), and I'm surprised my house hasn't been egged yet.
What about you guys? How do you tip your driver?