I like to build stuff. Often this happens in the garage where all the tools are. Lathe, mill, hacksaw, grinders, welders, etc, etc. The garage is insulated, but not heated. The problem is solved when the wife goes out on errands, or more accurately, when she comes back. If she remembers to close the garage door quickly, her car will warm the garage enough to comfortably work in for several hours.
The problem is to get her out of the house to run some errand. When it's cold out of course she wants to stay in and the garage never gets warmed up. Which is why I get so little done in the winter.
That's my story and I'm sticking to it.