So probably no one wants to hear about this, but I don't care. I GOT NEW WINDOWS!
We bought our house in 2002 and for 16 years I've been painting in my studio with single pane glass and no heat. But no more! These new windows are double pane, extra fancy, something something R factor and some even open! Why didn't I do this sooner?!
I'll deal with the heat part later, but for now go ahead—just gaze at these new windows.