Try to combine your work with your hobbies, so that you're doing what you like and can avoid the extra step. For example, if you like sports, try to get a job in construction which allows you to be physically active and avoid the gym fees. Similarly if you like food and cooking, get a job at a restaurant even volunteer, instead of spending your own time and money to cook at home.
Try to work close to home or even from home, use internet and technology to help you achieve this. E-mail and instant message your associates instead of spending time and money on faxes, pamphlets and cell phone bills.
Try to work in the closest establishment to your house. A higher pay might be enticing to put up with the traffic and travel time, but it's not worth it after taxes and travel cost cutting into your private time. The reality is that much like people, all businesses are the same. If someone was willing to pay you for your skill at one business, likely you will be able to implement your talent just as well anywhere else. Remember, time is money.
Don't switch jobs often or take another job simply because it has a little better pay. These days employers are spending a lot of effort to solicit the work force. Almost always it turn out too good to be true. The rule of thumbs is that if you don't know how your boss makes all the money, don't take the job. You will be saving your self a lot of headaches which will turn out to save you money and your health in the long term. Take a job that allows you to move to downtown where everything is withing walking distance and sell your car.