Ever walk out of a supermarket in Japan and wonder, “How did I just spend *that* much?!” With prices creeping up, grocery shopping can feel like a budget buster. But don’t stress—these five supermarket hacks will help you save big without skimping on your favorite foods. Packed with practical tips, a dash of science, and all the “you’re a shopping ninja” vibes, this guide is your key to slashing bills at stores like Aeon or Seiyu. Ready to keep your wallet happy? Let’s hit the aisles! 🛒