Complete tear-down? Never, unless you're a gunsmith. Too much of that DOES wear out a gun too fast, and it's better to let a gunsmith be responsible if something gets broken.
Pull the slide and barrel and clean the bore? Every time you shoot. Not with solvent, necessarily, but at least a dry patch. Solvent only if the bore is extremely dirty, and follow with a VERY light coat of gun oil.
Gun history? What do you mean? Experience? My entire life, with revolvers, semi-auto handguns, bolt-action rifles, lever-action rifles, semi-auto rifles, pump shotguns, single shot break-action shotguns...
EDIT: @Fluffy, with some guns, having a clean bore can make them LESS accurate. It's not necessary to clean the bore every time you shoot unless you're using corrosive ammunition. The dry patch would just help remove loose debris. Even that isn't always necessary.