Shop at Aldi. Seriously. It's the best shopping change we've ever made.
You can walk out with a stuffed full cart for about $110. That same cart would be well over $200 at Walmart. Their off-brands don't taste like off-brands. Their veggies and fruits are awesome. I love Aldi. Don't forget to bring your own bags.
I sometimes tell my husband that I wish we'd have found Aldi sooner. We wasted SO much money elsewhere!
I buy soda, cold medicines, dog toys and bones at Dollar General (off brand).
I make my own laundry detergent, body soap, and dishwasher detergent from products I buy from Walmart.
And during the holidays I still watch the ads for deals on meats and whatnot. A couple of weeks ago, I found a deal on porterhouse steaks at a local grocery. Hand cut to order...$4.99/lb. Wow. After Thanksgiving, I got several turkeys, after Christmas, a couple of hams. Before the Superbowl, deals on ground beef and chicken wings.
If you don't already have a big chest freezer, consider getting one.
Best of luck!
♥
C. Lee
ETA: We use the Dave Ramsey cash envelope system. It works and I suggest it. All of our bills come out of our bank account automatically, and then we have cash envelopes for groceries, the kids' allowance, adult allowance and family night.
We don't spend out of our bank account at all. We only use cash. It keeps us from making unnecessary purchases. We also have another envelope. At the end of a pay period, we take the money we didn't spend on groceries, adult allowance, or family night....and put it into the REWARD envelope. This is an envelope that rewards us for spending under budget. We can use reward money any way we like because it's not coming out of our budget and all our bills are covered.
Hope that helps!
ETA2: Our 2-week grocery budget for a family of 4 is $180. This time we spent just $140 of it, and put $40 into our reward envelope. I know there's no way we would have saved as much if we didn't shop at Aldi.