always buy on sale
I think the best thing is to always buy on sale. I own a large freezer, so I stock up on fruits in season. I especially watch for meat sales. Fresh fish is usually too expensive for me. Shopping at barns for produce. Making my own yogart and doing my own cooking. Making my own sauces, stir frys etc. Ends up being much cheaper overall, but you need an outlay. Buying in bulk. Not wasting. Making my own bread (breadmaker, can buy at thrift stores). Having emergency meals in freezer when I don't feel like cooking. Not eating out. Using coupons. Shopping once per week after meal planned for the week.