Thanks Guys!
I need to glue down the buildings, though not super strongly, because I when I am working on things on the layout up close, I have a tendency to knock buildings over by lightly brushing them, and since mine are going to be full of wire work and connections, this could cause other problems.
I like the idea of cutting a piece of foam to fit into the bottom, but then I would have issues of punching wire holes in those and in the bedding and wood below.
I think therefore, I'll try using just a few drops of Quick Grip. The reason that I mount my buildings on foam is so that I can, if needed, pull them up off of the foam, hopefully tearing off a little bit of foam and not the wall of the building. :-)
Mannyrock
