To be a ff, you have to be a high spender. How do you expect to be interested in this board unless you fly frequently and stay in hotels frequently? My airline, hotel and car rental charges alone on my corporate Diner's Club add up to about $4000 per month and I think that is probably low, since I buy only cheap nonref. US travel only tickets. My home phone bill, wireless bill, groceries, gas, state car registration, everything are all paid by C/C. If you don't spend at least $20,000 by C/C, it either because you are using too much cash or checks or you are fiscally challenged .