In Memoriam, FlyerTalk Evangelist
Join Date: Jul 2002
Location: Durham, NC (RDU/GSO/CLT)
Programs: AA EXP/MM, DL GM, UA Platinum, HH DIA, Hyatt Explorist, IHG Platinum, Marriott Titanium, Hertz PC
Posts: 33,856
I agree that a $10-20 is the way to go. However, for me at least, I like a quiet ride and if I get the drivers who won't take the hint to stop talking, I may reduce the tip.