I usually tip 20% most of the time. Last time with the
DDP I didn't add extra. I didn't think about it and didn't bring any cash with me--did everything by credit card.
I was thinking about it, though, and figured out that for a $60 dinner (there are only two of us, so I figured this is about right, the 2% which would bump the tip up to 20% from 18% would = $1.20. I feel just a little over a dollar extra on the table would be weird. Does anyone leave that little extra?