I tip for good service at restaurants with cash. Call me superstitious, but I’ve never put tips on the credit card. If waiters/waitresses must “share” their tips, then cash gives them an option. I’m not really sure how they feel, but that’s what I do.
I like to give junk silver tips—with an explanation:
This silver dollar is legal tender and can legally be reported to the IRS as a one-dollar tip, but the value of the silver is around $15-20.