Originally Posted by KhalilSheikh
I especially do this with a colleague who is a fellow mile hound.
You can also do this with non-milehouds, such as a spouse.
This discussion is focused on iDine bonuses, but the tactic can also be used for topping off FF accounts. When I needed X amount to top off an account, I asked the waiter to charge one card for, say $20, and put the rest on another card linked to another account. No questions asked.