Installing boxes

Today involved installing electrical boxes where I'd located the marks throughout the house. These are the housing for the outlets, switches and lights that will eventually inhabit them.

The boxes that are mounted on an exterior wall come with a rubber flange that helps to seal the connection between the electrical box and the sheetrock that will eventually be installed around it. This is an infamous point of entry for air infiltration and I think I might still try to get a little caulking in around this connection if it doesn't seem like its going to snug up.

The blue boxes are located within the house, so do not require the rubber flange.

Whats becoming apparent is that we need to make decisions about things that we haven't dealt with yet, such as what fixture do we want to have in the bathroom over the mirror? There's a million details like this and its a little overwhelming. Any eager interior designers out there?

Slightly off topic: I figured out today that by placing my stainless steel coffee cup on the woodstove I could reheat or keep my coffee warm. Also had a brief and friendly visit from two women who wanted to introduce me to the lord. I let them know that I'd already made his acquaintance in my own way and so no introduction was needed.