If you haven't discovered Aldi yet for your groceries, run! There is a new, very nice one behind Northway Mall. Really helps, you won't find everything there, but you can do most of your shopping and it helps your budget. I really like their Grandessa and Fit and Active lines of products. Bring your own bags or boxes for the groceries, and a quarter for the cart. (You'll get it back.)
Yard sales, consignment shops, Pennysaver, craigslist.org, and I love Gabriel Brothers. Shop discounts at Landsend.com, you can get free shipping, return to Sears if doesn't fit, and get higher quality clothes that will last longer.
You can start to clean green and help your bottom line, lots of info on the net with that, by mopping your floor using vinegar and water. (Bonus, ants don't like vinegar.) Baking soda, bleach, borax, and I found that I love that my eyes no longer burn when I clean the bathroom. (I did buy a multipurpose cleaner called "Greening the cleaning" that I really like in the bathroom. There are a lot of products out there now.) Tiolets do need more chemicals, I've found, to keep mold and stains in check.
Someone mentioned feeling old fashioned, and I know what she means, and I kinda like it too. I think people used to do things much better. I'm not an environmentalist, but I feel good not using all these chemicals for myself and the kids, and it is cheaper. My cleaning supplies involve:
Two huge vinegars at Sam's, Murphy's liquid soap for my wood furniture and cupboards, some bleach, some amonnia, Borax, and that's the extent of our cleaning products. (You can make an awesome ant poison with Borax -- 2 Cups water, 2 Cups sugar, 2 Tablespoons Borax, mix, apply with an old medicine dropper to where they are coming in, and they take the poison back to mama and no ants in 24 hours! Keep kids and pets away.) Oh, Barkeep's Helper for our ceramic sink.
There are lots of things you can do. If you wait to buy things that you need, too, you can always find something less expensive, as long as you are willing to wait and let the price come down. Thinking ahead helps. Two summers (or maybe last summer) I forget, I bought two matching maple twin bed frames at an estate sale, and painted them myself. I didn't need them at the time, but they were very inexpensive, and I know it is difficult to find heavy, sturdy wood furniture now, whether you have money or not. I now have beautiful beds for my boys that I am confident they are going to have trouble destroying. Stuff like that.
It takes an adjustment, a way of changing your thinking, but you can do it. Fortunately, we live in an area where there are lots of free or inexpensive things to take kids to for activities. But, don't forget to pack your lunch -- a lot of these places, you might get in cheap and then they get you on the food. You will be fine.