https://www.swagbucks.com/refer/rl235 Earn points and redeem them for cash. I made 30 bucks worth of gift cards in a couple of weeks. Use their search engine instead of google and they give you points. Also you can earn by watching videos and doing surveys. Basically free money in your spare time. If you only want to use their search engine and don't have the time to watch videos the least you'll make is a couple amazon gift cards per month.
If you don't use amazon you can also let your points add up and cash them in for paypal cash.