Here are some more great tips I've learned from family, friends, books, etc.
Tip #4 - Why pay for something - when you can get it for free.
My favorite site is Freecycle.org. This site is only for people giving away their unwanted stuff. (No selling, re-selling of stuff received ie. ebay, or trading allowed). Have you always wanted a treadmill, the latest book, a file cabinet, a dresser for your bedroom??? Log on and sooner or later someone will have one they want to get rid of.
Tip #5 - Try it before you buy it!
Before you go and spend $100 or more on something you've never used - give it a test drive. Whether you're considering a new car, a computer, mp3 player, little black dress or something like web hosting. Try it on, ask around, do research, go for a test drive. Get feedback. Don't get commited to something before you know if you even like it. Just look at the latest mobile phone ads - letting you try their service for 30 days to see if you like them before you sign a monthly contract with them.
Tip #6 - Out with the Old!
Before you consider getting something new consider where you will put it. Do you have space for it? Periodically go through your stuff and get rid of everything you no longer want, need or care for. If it's broke, worn or just never used - get rid of it. Donate any useful unwanted items to a local charity. Many will even pick up items to save you time. You'll feel so much better when some of the clutter is gone.
More to come soon :)