"Yes, if its just inside your home a shotgun is a good choice. But if you live on a properrty how fast can you get to the shotgun? A bit of a pain to carry around."
Outside the house, it's normally a .38 Spl revolver or a small 9mm Semi-Auto in my pocket. That's about all I can do, since I wear bib overalls when I'm working outside (no dedicated gun belt like the cops use...yet, anyway). I keep thinking about getting one of those across the chest holsters like handgun hunters use to carry in the woods. That would be for my Taurus Tracker .357 Magnum (nice revolver, BTW). The across the chest holsters aren't that expensive...just haven't done it yet.
But, inside the house, the shotgun is the better choice, IMHO.