I rearranged my house slightly to colocate the rooms I use most frequently, provide more room for the new television, and maybe save some energy too. I really don't have a need for more square footage, so I don't heat it.
Here's the new layout:
The old layout had the room labeled "living room" and "workshop" closed off, and "was dining room" crowded with living room furniture.
What's to stop my bathroom pipes from freezing? The vacant apartment downstairs is heated to 40°F now, and I've validated that the pipes are at no risk of freezing in single-digit °F temperatures, and colder temperatures are unlikely to be an issue. Buffalo seldom gets that cold, anyway.
I find it more convenient than a larger house. Before, I was keeping the bedroom door closed to keep that room the warmest, and it was a pretty long walk to the kitchen. Now, it's not a long walk to anything.
Interestingly, I'm heating ~350ft² of my house, and my garage is 320ft². If I were building a new house now, would I end up with a garage larger than the house?