I do my own oil changes, winterization, detailing, changed out the steering system. I also change my own transmission fluid every season. I have installed some replacement parts such as speakers, speedometers, stereo source unit. Tune-ups and engine alignments and major repairs, upholstery, I leave to the pros. I just upgraded my prop from an OJ legend 13x13 to and ACME 540 13x12. My next project is swapping out all the engine and manifold drain plugs with valves so I can drain the engine for those cold spring and fall nights with no tools.