I LOVE credit card rewards, you just have to keep track of them- so don't get too many!

Discover is one of my favorites.

Discover is awesome!!! That's all I use!

I love the Alaska Airlines credit card for the rewards, but when we found ourselves in credit card debt, we stopped using it altogether, no matter WHAT the rewards were. Only after we paid it down to a zero balance did we eventually use it again for the miles. And now we pay it off after each transaction (we only use it for the big stuff). The miles are becoming, for lack of better words, kind of inflated. It now takes so much more for one ticket. However, it's free! I'd rather get rewarded for something we were going to spend money on anyway. It just makes sense.

I had a wallet full of cards at one point, so I know all about rewards!!

Currently, I have the same Chase Freedom card that @jdmrosa has. Love the rotating categories with the 5% cash back- but I put the card away when the categories are not what I want to be spending on. For example - October, November, December the categories are hotels, airlines, Best Buy and Kohls. Unless I'm planning a trip, I won't keep the card in my wallet - I'll be too tempted to use it otherwise. When the 5% is on gasoline though, I use the card to buy gas and then promptly pay it off as soon as I get to my computer, since I allocate money every paycheck to cover gas.

I still have a Bank of America Rewards card, but I only get 1 point per dollar spent since I signed up for it awhile ago when that was the hot deal. To me, it's just not worth it to use this card anymore.

I also have two store cards - one for Express and one for Victorias Secret. These are the two stores that about 80% of the pieces in my closet come from. I was irresponsible with how much I used the cards, but if you carefully allocate how much you can spend and pay the cards off immediately when the bill comes, you get great rewards and coupons for sometimes as much as $30 off. I'm not kidding when I say that in my heyday of using these, I probably got half of what I bought for free or at at least 50% off with all the rewards. Plus, the dress pants I got from Express back when I graduated college in '09 still fit, and are still in 100% perfect condition through some vigorous wear and tear, so to me, totally worth it! My boyfriends mom has a Macys card, and same way, she shops there for everything from house stuff to clothes to gifts, so the points she accumulates and the rewards coupons she gets back make it worth it to her.

My boyfriend and I both have the US Bank Flexperks credit card with travel rewards. We both pay for everything on our cards and signed up for auto pay. It's really easy to get points -- we used our points last year to go on a trip to Hong Kong!

I love credit cards with rewards! My favorites are the AMEX SPG (starwood) card and the United Airlines card. Both offered bonuses when I enrolled and a bonus for a friend/family member who referred me.

I like to use these for travel and it comes in really handy. Each card does have a fee after the first year but for a frequent traveler the United card allows me to check a bag for free and early boarding.

I find these cards give me better bang for my points than cash back. Cash back is usually less than a penny per point but each of these cards end up being 2 1/2 to 3 cents per point.

It takes some planning to use the points but it's been well worth it for me.

I would second the Amex SPG if you're looking for a travel rewards card. While I enjoyed my Discover Cashback, and consistently averaged close to 1.75% back, SPG makes even more sense if (a) you like their hotels, and (b) you're looking for a card for travel perks. We've calculated that we should have at least 1 fully paid (flights + hotel + 5 days) vacation at least every other year with this card.