I used to think I had common sense... until I met my ISTP husband.
Now that's common sense!
When I say "common sense" I am referring to information you gather from the five senses and just "know" about.
The 2 ISTPs in my life, and the 2 ISTJs in my life all think that they have more common sense than I do.
And when we compare plans and strategies, they are right.
Usually, my ideas are not realistic enough.
I agree with the person who said INFPs have the least amount of common sense.
That has been my experience as well.
I believe that "common sense" comes from "Sensing" in general, and that Se is the highest form of "common sense". Perhaps Si is the second highest form of "common sense".