<prompt> Human: Cash back! Points! Zero interest on todays purchases! Its possible, that if you pay off all of your interest, you can actually profit quite a bit... IF you use the right credit card. Its important to weigh the various cash back and points options between cards to figure out which one works best for you to use daily.Heres an example:I have three credit cards.1 is an Amazon credit card with a limit of 2,600. Any purchases made get me 1-2 back in points that I can use to buy things from Amazon, with 3 back from Amazon itself. This card has high utility and I can utilize the points 100 effectively, especially during Christmas where I can get free shipping and free presents for friends and family. I have had this card for 5 years and use it for all of my daily purchases.2 is a Best Buy credit card with a limit of 2,000. This card was first issued to me so that I would have 3 years, same as cash to pay off a washer and dryer. I have not used it for any other purchases since. The other rewards are when I reach certain purchase thresholds, I get coupons for use at Best Buy. This card was great at first, but I dont constantly need expiring coupons to encourage me to buy things that I dont need.3 is an American Eagle credit card with a high limit of 9,200. This was one of my first cards and got me a one-time discount when I signed up for it. Its limit was initially around 2000 but increased over time and suddenly jumped one day from 3k to its current level. The rewards are coupons for clothing that expire 2 months after being used. I rarely use them, partially because they arent allowed on some items that are already on sale, and I dont regularly buy clothes. I keep the card as a secondary, back-up or emergency card. This has actually been highly effective for me over the years, most recently when I moved across the country and had a gap between checks.I should note that I have only once paid interest on a credit card in the 7-8 years that I have had these 3 cards. Paying on time actually has netted me, Im guessing, close to 2,000 over the years in free money.What cards do you use that have saved you money, and what cards do you recommend?  <response>: Having multiple cards and keeping track of who will give me more rewards for what purchases is more hassle than its worth to me, I just buy everything on my flat 1.5 cash back card. Capital one quicksilver. Also theres a whole sub for this, rchurning. 