It also pays you to know the store's policy on mismarked items and expired items. Some stores will give you a free item if you find one that is out of date (usually dairy items). My local store's policy on mismarked items is that you get it free PLUS a dollar if it doesn't ring up at the marked price. I just got a package of large tortillas for free, they are usually around $2.69 and they were marked $5.99. Even though they rang up at the usual $2.69, they were marked the $5.99, and therefor free PLUS a dollar! Yippee!!!!!!
I look for these items and get about 1 a month. It takes time to look for these things in a store.
Andrea