The way I've sort of thought of tips, it's more like "well, they're driving X miles to/from the store to deliver my order, so the tip should maybe cover that, p

The way I've sort of thought of tips, it's more like "well, they're driving X miles to/from the store to deliver my order, so the tip should maybe cover that, plus a bit more if they're friendly". But in times like this sometimes I'm ordering from a very short distance that takes a minute or two of driving, so they hardly need, say, $3 dollars tip for gas since it probably wasn't even 1/10 a gallon to get the food and deliver it.