The Portland Daily Sun has published the first of a 2-part series on take-out tipping.
Varying industry sources on the Web say the percentage should be anywhere from the change in your pocket to treating the transaction as if it were a dine-in experience. I typically do 10 to 20 percent for food packaged or delivered and $1 for coffee. As always, tipping is your call. Chances are slim someone will violate your food if you don’t tip, but your service next time will be even better if you do.