Tips for Towncar Service

[Bacrd]

What is considered an appropriate tip for the driver? Never used this service before...so not sure what is considered a "fair" tip. I'm guessing on the way to port with a grocery stop would warrant a "little"more. What do you all normally do?

 

[aprilgail2]

Normally with a limo or town car I give 15%-20% of the cost as a tip...with a stop I would give 20%