We do a lot of the things already mentioned, which isn't difficult since we've been doing it for years. Heat with wood, gardening,purchasing items on sale, and stocking up when it's a real good sale. Our clothing is probably 9o% thrift store finds. If it's not from the thrift store, then it's shoes, underclothing, or gifts. We're expanding our garden this year. By the time we're finished (we're getting close) we should have about 3 times the garden space we did in previous years. We'll freeze what we can, and can the rest. Rarely eat out, maybe twice a year at a reasonably priced spot, and when we travel to visit relatives, which happens once or twice a year. No cable TV, and internet is the cheapest dial-up we could find. At less than $19. a month we figure it's a bargain, especially since it is our news source as well as a huge asset for our homeschooling.
We're eating less meat, and the kids are eating more cooked cereal, rather than the cold cereals for breakfast. They don't eat the sugary cereals, and their other options are rather limited so they were getting a bit bored with the selection anyway 
BTW, I just posted my laundry detergent recipe on my blog (Boondock Babble) yesterday. What a coincidence! LOL It's a real easy "recipe".
Just combine 1 box each of Borax and Washing Soda, and 1 bath size bar of soap, finely grated. (A lot of folks prefer the Fels Naptha, I like Ivory). Mix it all up good in a large bucket, then dump it in a couple large coffee cans (the new plastic ones work great). I then pop a little medicine cup (such as you get with liquid cough medicine) in each can. You only need to use 2Tbsp. per load (even a large oader such as ours) because there are no fillers, so the medicine cup is just the right size Just don't use it with silk or wool items, because of the washing soda.