Triple A here as well. But for long trips, I actually will carry a full size 18" in the trunk. Plenty of room for clothes as well and if you need to use it, there's room for the flat when you take the full size out. I understand it ain't perfect, but if you got no cell Svc for a phone call or no tire shops are open in the small 1 horse town youre passing thru, you at least got a way home.