I carry cash, but very rarely use it, so my wallet has $20s, $50s, and a $100 or two. Too much for a tip, unless it's for dining out. I still try to tip waiters

I carry cash, but very rarely use it, so my wallet has $20s, $50s, and a $100 or two. Too much for a tip, unless it's for dining out. I still try to tip waiters and bartenders cash.