Dh is the world's best budgeter and I am so proud of him. We have savings, we have enough in dd's college fund that we don't have to worry about it the next 15 years, we have retirement and no debt except for our house. And it's all because he is so good with making sure we stay on budget.
We live kind of simply. We do eat out sometimes, but other than that, we don't spend on extras. We never go to the movies, we get yearly memberships for activites in the city, and find free things to do otherwise. Dh takes a sack lunch to work and I always pack dd's lunch. We freecycle when we can. In the past I've done things like use my computer skills (former computer programmer before becoming sahm) to barter for things like yoga classes. We use our library instead of buying books. We utilize the bookstores and libraries for kid's activities. I cook everything from scratch. For example, if we have chicken, I'll simmer the bones to make stock for a meal in the future. The one thing I don't do is bake bread. I stink at that!
We shop at resale shops and try to find bargains at Goodwill. We also donate our stuff to Goodwill to get the tax break. Other than that, I just follow dh's lead and when he says that we need to watch the $$ for the next week, I simply make do with what we have, which sometimes means a lot of cooking from the pantry. Dh makes a good living, but we are committed to sending dd to a private school, which is why being frugal is important to us. We cut corners at home in order to afford her school, which is our one extravagance.