Fluid maintenance is your most important priority...mainly engine oil, transmission fluid (esp. with an automatic), brake fluid, etc. Anyone with 1/2 gram of common sense can check tires, belts and the horn at home. If you aren't inclined to do fluid changes yourself, take it in and have that done. If they're suggesting to replace the fuel filter at 30K, have them do that, although that seems awfully early in my opinion.