Most the time I pocket carry a M&P9c with a back up gun in the other pocket. If I am carrying a 1911 I carry a spare mag and a backup gun. If I carry a full size M&P9 I carry the 9 compact as a back up. So I guess I carry a spare mag it's just in a different gun. I carry the same if I am going to the big city or church. Bad guys travel and can show up anywhere.