Do you use your credit card to pay for charity, business expenses, etc. If you pay off your balance every month you can get rebates on certain cards like I discussed a while back, but there is another advantage. The IRS will let you deduct items when you CHARGE them, not when you pay the bill. If you are short a little cash at the end of the year and want to add a few medical, charitable or business deductions, whip out the credit card and take the deductions this year, then pay them next year.