Phew! That is expensive insulation! But I guess it is worth it if it means doing it right the first time and not having to go back and fix it again in 30 years.... But yeah, that fiberglass sure gets unpleasant after a while. I still use it anyway because it is less expensive than anything else I have come across so far, hehe.

I have been thinking about using some 2" styrofoam sheets when I insulate my floors, and cutting them to fit between the joists. I am thinking maybe like screwing some strips down the insides of the joists, that I can then lay a strip of Lauan on (to hold the styrofoam up, and to keep the critters under the house from digging at it), and then laying the styrofoam on top of that such that it would be even with the tops of the joists, and then putting the subfloor over that. But I don't really know what I am doing, lol. I guess I could do the same thing with fiberglass, but I am thinking like maybe the styrofoam sheets would be more resistant to falling out of the bottom of the floor like the more flexible insulations always seem to do, though..... Especially if I squirted some glue around before installing the subfloor, so that the styrofoam would be firmly attached to the underside of the subfloor.