My favorite Chinese restaurant is quite a distance away, so I only eat there a few times a year, and always also get several meals' worth to go. I tell the waiter that I would also like a take-out order. In general, the take-out totals 2-3 times the eat-in tab. On what amount should I base the tip? I usually tip half-again as much as I would for just the eat-in part. It's not quite the same situation as just walking in and ordering to go. Or, should I just handle the dining tab as usual, and order the take-out afterwards at the register? I'd like to hear waitstaffers' opinions on this.