The strongest cash back credit cards are designed for people with good to excellent credit, offering 0 percent intro APR offers for purchases and balance transfers as a perk. These offers can typically last 12 months or longer. Not only can these intro APRs help you save interest as you pay down large purchases, but they can also help you consolidate existing debt and pay it down faster.If you want a card with a 0 percent intro APR offer, you’ll have to keep that in mind when shopping for a 1.5 percent cash back card. If you don’t have any debt to consolidate or a large purchase planned, this shouldn’t be as important to you.[su_br_tipbox type="keep_in_mind" copy="Intro APR offers last for a limited time, with variable APRs that apply after the intro expires. Have a plan for paying off any balances subject to the card’s regular APR before it takes effect."]