First, check your tire air pressure and adjust according to what is marked on the tire sidewall. Don't forget the spare!.Get rid of any thing in the trunk you don't need. Like for instance, those sandbags you added last fall or that dead body you were supposed to dump for Sammy..If you haven't done a tune-up this might be a good time to do so.But, on your own you can do some simple stuff.You could Replace the spark plugs and air filter once a year, this will mean better economy and better performance to boot..