Suggestions, in no particular order:
- Don't buy the newest iCrap (or car or tv) every time they shit one out: you *don't * need it, I assure you.
- Learn how to fix and repurpose things. Take good care of your things so they last longer.
- Freecycle, trade with others
- Shop at second hand and thrift stores for most things.
- Think before you buy. Try to support true fair trade/fair wages and buy locally whenever possible. Hint: it's usually possible.
- Use a bike or public transit whenever possible. Get rid of your car and use things like Zip Car for the few occasions when you need to use a personal vehicle. Share a car with friends if you truly need it for kids/work/whatever.
- Prepare your own damn food. Go vegan.
(Hey, you asked for suggestions: these are mine.)