You guys will think I'm crazy, but one of the most economically helpful things I've ever done was to sell my television set.
Seriously! I sold it about three months back or so.
So now I don't buy DVDs, where I was buying three or more a month. I don't see the hype for various movies, so I don't GO to movies as often. I don't see informercials and product ads, so I am less inclined to impulse buy. Aside from that, I don't pay for cable, the price of which seems to go up every few months these days!
In the evenings, instead of subjecting my brain to endless attempts to get me to buy stuff, I read, or knit, or just sit and watch my fish, play with my cats, I even gardenm at night! I have a big floodlight I direct at wherever I am in the yard.