Do you change your oil every 3000 miles or do you always buy premium fuel? Well, you probably shouldn't. A lot of cars can go much further between changes and many newer cars even have an oil life readout (check you owner's manual). Also, I've had really good luck with a trustworthy local repair shop and have been treated very well on repair costs. I'm on a first name basis with them and refer business to them frequently (and remind them of the referrals). See the article below for some other ways to save.
Don’t change the oil more than you need to.
Find a local mechanic you trust and show him your business.
Have you considered a warehouse store for your tires?
Know thy hybrid.
Keep the right parts dry.
You bought a car. You didn’t marry the dealer.
Tire rotation? Don’t spin your wheels.
No ignoring the oil light.