At bars, I'll open a tab with a card, then tip on the first round with cash. Then at the end of the night I'll tip for subsequent rounds on the card. I don't wa

At bars, I'll open a tab with a card, then tip on the first round with cash. Then at the end of the night I'll tip for subsequent rounds on the card. I don't want to do a bunch of scribbling on a receipt after each order, and I want to establish that I'm willing to tip well early to get quicker service. It's definitely the ideal solution.