Anyone carry a "temporary use spare" in their car?

I am running sbp in the front and bbp in the rear. My daily commute is 14 miles, and I have AAA.

I am not going to carry one of each bolt pattern in the trunk. I'm doing everything I can to lose weight. I may get a donut when I finally upgrade the front to big bolt pattern.

You can also find steel rims with dual bolt pattens. They get used for studded tires.