Originally Posted by AlwaysGreenAlwaysWhite
Would you tip a waitress or bartender 20% if you sat at a table and nursed a beer for an hour? You'd give them 20% of $3.50?
Percentage based tipping is for people not smart enough to have the sense to tip what is deserved given the circumstance...
You were too lazy to drive a couple of blocks... You shouldn't take it out on the delivery guy because you're lazy...
Obviously you have to use discretion in situations like that, but once you get upwards of $10, it seems like 20% is more than an acceptable tip.