Nothing keeps paint looking good and protected like a coat of quality wax. Apply wax at least every six months.
Driveline components such as u-joints also require regular lubrication. The driveline may have to be removed to access the zerk grease fitting.
Protect the interior plastic by parking the vehicle in the shade, using a window deflector screen, and applying a UV protectant to prevent the plastic and vinyl from drying out.
Inspect, clean, and repack wheel bearings with wheel bearing grease according to service intervals. Wheel bearings and grease are inexpensive compared to spindle and hub replacement, or liberated wheels rolling down the road ahead of you.
Brake fluid is hygroscopic. This means it is adept at attracting moisture. Moisture causes components to corrode and fail. Replace fluid and bleed system once a year. Brake fluid is cheap. Calipers, hoses, and sensors are expensive.