Depends on whether it's a bar or restaurant. I'd tend to agree at restaurants (anecdotally). But, when I tip at a bar with cash, it's a buck a drink, even when

Depends on whether it's a bar or restaurant. I'd tend to agree at restaurants (anecdotally). But, when I tip at a bar with cash, it's a buck a drink, even when it's a 2 dollar coors light. If I pay with credit card, the 20% thinking kicks in and that's what I tip. 40 cents on a 2 dollar beer.