PSA: Took 4 hours to cut my grocery bill from $212 to $138, and the popular advice is backwards
Everyone says clip coupons and buy in bulk, but what actually worked for me at the Kroger on 5th was going at 8pm on a weeknight and buying the marked-down meat and produce they slap 50% off stickers on, then just planning meals around whatever was cheap instead of writing a list first.