There’s nothing better than the oldest hack of couponing! You might have made fun of your grandparents for whipping out the coupon book, but they were seriously onto something. Use coupons and cashback apps to save on groceries and shopping. If you use them religiously, then all those savings will add up over time. Pay attention to annual sale cycles, buy in bulk, and only use coupons to buy items you need. Coupon expert Jenny Martin says, “You got your 10 items, you used all of your coupons, you saw that the store didn’t treat you horribly — and they took everything. And you saw how much you saved, and that’s the best part.” Keep track of your savings to notice just how well you’re doing with living a cheaper life (Nerd Wallet).