Want to save money in every single aisle at the grocery store? No sweat. Seriously! These five low-effort supermarket-savings strategies do not require complex cost-benefit calculations, time-consuming research or pre-shopping preparation. 1. Cheat off your grocer’s math homework. Is the bigger box of cereal actually cheaper than two smaller boxes? Put down that calculator and get the answer right off the sticker posted on the shelf — the per-unit price “cheat sheet.” This savings shortcut helps you instantly compare different sizes and brands of everything you toss into your cart.