White lithium grease is good on bicycle chains and guns. As long as we keep the humidity low the tools stay relatively rust free. Belts and brushes on motors have to be replaced occasionally. Definitely have to chech and throw out old batteries. One d battery swells up in a maglight 6 battery flashlight that’s the end of it. Wheel bearings need to be greased. Oil changed in vehicles. New plugs. Generators have to be started and run. Old gas flushed. The lawn waits for no man.