Originally Posted by Counsellor
1 - I stay x nights
2 - I buy something small and charge it to the room
3 - On the day I check out, I ask for a "trial bill" (or use the one they slip under the door)
4 - At check-out, ask the desk to charge the basic room cost plus room taxes (i.e., the stuff the company will pay for) to the AMEX (for company receipt). This will leave a small balance (for the item purchased in step 2, plus any tax on that item)
5 - I settle the remaining balance with Visa
Marriott's computers are quite capable of generating two bills for the same stay, one with room charges or whatever to go to one credit card, and the other with miscellaneous charges to go to another credit card. I do this frequently at fs properties because I am required to use the corporate credit card for the room, but not required to charge anything else to the corporate card.