Frustrated with gas prices going up again? Have a car 10 years or so old? Never done a fuel system cleaning? You can get a multiple part service done at a Jiffy Lube or Kwik Kar which is more complete or start out at a retailer like Sears or KMart or Blaines and get the Johnsen's Mega Mileage Improver which can improve mileage up to 5.7%. Made with proprietary technology from Lubrizol, the older the car and the worse the gas you've been using, the more improvement you will see. use it every 15k miles and you'll be good to go. If you need more immediate results, go to the Kwik Kar type outlets and the 2nd and or 3rd Steps can get you more immediate results. These products can also lower emissions which comes in handy prior to that annual inspection.
So the good news is there are thing you can do to save gas: Use a fuel system cleaner, change the oil with the right oil, change your air filter, make sure your tires are properly inflated, consider synthetic oils throughout your engine and transmission, etc.
None of this is free but they all work.
So if gas prices get you down, get some Johnsen's and get that junk out of your trunk!