This is general advice, not a measurement of any particular store.
Shop the perimeter first
The perimeter of a typical supermarket holds the produce, meat, dairy, and bakery departments — the sections where weekly ad markdowns are deepest and where most chains rotate department-wide percent-off promotions. Building your trip around perimeter departments first, then filling in pantry items, tends to capture the largest absolute-dollar savings of any single shopping habit.
Time your trip to the markdown window
Every grocery chain runs a weekly markdown cycle that begins on a specific day, with deeper markdowns often appearing right before the cycle resets, when the chain wants to clear soon-to-expire stock. Shopping during that window, even once a month, can produce meaningful savings on perimeter items.
Bring the loyalty app to the register
Many major chains now publish their best in-store coupons exclusively through their loyalty app. The catch is you have to clip the offers in the app before you arrive — they do not apply retroactively at the register. Clipping offers in the app before you walk in can capture savings that the casual shopper misses.
Stack manufacturer coupons on store sales
Manufacturer coupons (the ones for specific brands) stack on top of store-level promotions at some retailers. Stacking policy varies by chain, and this site has not surveyed it. If a retailer is running a 30% off promotion on a brand of pasta, and you have a manufacturer coupon for $1 off two boxes, you get both discounts. This is the single most underrated savings mechanic in the supermarket aisle.
Buy the unit, not the package
The unit price (price per ounce, price per pound) is printed in small text on every shelf tag. Use it. The largest package is not always cheapest per unit — and when a smaller package is on sale, it often beats the bulk option on a per-unit basis. A 30-second comparison at the shelf can shift the entire economics of a grocery trip.
Use cashback apps on what you were buying anyway
Cashback rebate apps pay you for buying items you would have bought regardless. They are the closest thing to free money in the supermarket aisle. Photograph the receipt within 24 hours, watch the rebate post a few days later.