Circle offers, manufacturer coupons, gift card promos, and the 5% Circle Card discount can all stack if used correct ...

But these advantages come with serious trade-offs. Miss a payment or fail to manage multiple cards properly, and you'll face expensive interest charges that can quickly spiral into unmanageable debt.

Double-dip on savings by using your rewards credit card in tandem with a cash-back app or site. Here are some of our favorite ones and how they work. Many or all of the products on this page are from ...