T.W.
It's amazing what you can do with a budget. 5 years ago when our first son was born and I stopped working, we got by on $175 a month for groceries including diapers and formula. I shopped garage sales for kids clothes, toys, and books.
I think the biggest savings possibilities are in groceries. The other suggestions are good in this area (menu planning, weekly ads). If you are by a Ream's, they are unbeatable on their prices for fresh fruits and vegetables (the stores aren't fancy, but the produce is still good quality).
Also, if you need something, and can wait to buy it, do an internet search (ebay, craiglist, ksl.com) to see if you can save. We have saved A LOT (25%-50%) on many items by shopping on ebay, remember to look at total cost. We have bought items like: grain mill, rechargeable batteries, cameras, drapes, bedding, clothes, phones, books, etc. Last tip, don't shop. Good luck J.!