 For a discount Fireworks Superstore location near you at Free Fireworks, log on to DFSFireworks.com or text discount to 559-601-0793. $5,000. That's the average amount of money people in the U.S. are now spending on gas in a year. Five grand. That's crazy. If you drive, you have to download Upside, the free app that gives you cash back every time you get gas.