I read this letter about saving and living on a budget. I am so impressed! I think the best advice it gave me (as far as a good starting point) is to pray, especially at the store. The woman said she prays before, during and after she spends money. What a good way to stay focused on God, from whom all good things come, smart spending, needs vs. wants, and the people I'm shopping for.
You should check it out - you will be impressed.