My first choice and the one kept handiest is a 12 gauge pump gun loaded with 00 buck. I've been familiar with pump guns since my youth and try to take classes once in a while to stay fresh. Option two, available but not top of the list for a few reasons, is an AR. Way down on the list is my CCW, a 1911. While I do regularly take some class or another, I still default to the 12 gauge. As far as strategy, my bedroom door is right next to the door leading upstairs where my kids rooms are. All I have to do is stay in place and make sure nobody gets upstairs. Even in my own home, I'm not going looking for bumps in the night by choice. I do have kids, so securing guns is an issue. Anything but the shotgun is stored completely unloaded. The 12 gauge is kept with the tube stuffed but the chamber empty, but my kids are unable to get to it. Kinda hard to describe, but it's tucked between my bed and dresser where it has to be lifted straight up to be removed. Neither of my kids are tall enough to do so. When they were even smaller and we lived in a different house, I simply kept it on a wall rack that they couldn't reach even with a step stool. In another couple years my son will be taller and I may have to re-think storage for the shotgun again. I guess with a rifle, shotgun and handgun, I'm set if I'm ever invaded by ninjas, but until then I'll just stick with the shotgun and a basic plan. It's unlikely I'll ever have to deal with a home invasion, but looking at a locked gun cabinet and no plan is kinda like trying to buckle your seatbelt while crashing your car.