Yeah, those are the best of both worlds when you're not dining at an upscale place. Don't have to use cash, don't have to wait for them to complete two round trips just to leave.

I never understand why waiters don't give me a chance to hand them the card immediately when they drop the check. I don't need to sit with it for 10 minutes, especially after it took 10 minutes to flag you down for it. Years ago I was a waiter, so I don't really sympathize with an argument that they're too busy. The whole system could be revised.