Keep your eyes peeled when it’s time to checkout at the grocery store. It’s now common knowledge that “errors” happen all the time when the clerk is ringing your items up. How often do you pay attention to it though? While you might seem annoying to the clerk and the people waiting in line, it’s best to keep a look out for the price of each product scanned and let them know when there’s a mistake. They will often times just credit you the price you claimed it was. Another thing is coupons. Sometimes they’ll scan all the coupons and you don’t get credit for all of them, or you just get $1 off instead of $2. While you might only save a couple of bucks here and there, it can add up to $50-$100 a year.