After weeks of cold nights, I found the gap in my insulation
I thought I sealed my tiny house perfectly last fall. But this winter, I was freezing even with the heater on full blast. Turns out, I missed a big gap near the foundation where cold air poured in. I had to tear up part of the floor to fix it, which was a huge pain. Now that it's sealed, the place stays warm and my heating bill dropped. Feels good to have solved that after so much frustration.