Strip it down and take solvent to all metal surfaces and then apply gun oil as per instructions in owner's manual (some parts need medium oil, some light, some none). Familiarize yourself with all aspects of the guns operation with and without lights (in case some idiot actually decides to break into your home at 2am and you can't see anything). Every time I shoot I strip it to the frame and take Q-Tips to every little corner to get ALL the crap out but I'm a little bit anal. Make sure you keep the bore clean no matter what you do for other maintenance. Also my LE friends tell me the best way to practice outside the range is by purchasing snap caps and dry firing at "bad guys" on tv.