When ever listening to something, eg TV or Music, always listen to it softly. It protects your ears and means when you go to a concert it makes the experience THAT much more enjoyable.
Always keep your self organised it means less stress and more time to get things done. Clean your room/house all the time. You'll be able to find things easier and it makes you feel better when every things clean.
Make a jar for coins. Every time you find random $1 and $2 coins put them in there and don't take them out. At the end of a month/year take the coins to the bank and deposit it, you'll find that you have quite a bit of money. This stops you from wasting that spare change on fast food etc and means you can use it on proper things.