I was sure spray foam was the best way to insulate my van build. It seemed easy and promised great heat control. But after a few months, I found black spots growing behind my wall panels. The foam trapped moisture and caused mold, which now smells bad and is hard to fix. I spent days tearing things out to clean it up. Now I think rigid foam boards or natural wool are much safer bets. How did so many people miss this big downside?
I got into the habit of noting down my solar battery levels every evening before bed, which seemed excessive at first. After a week, I spotted a consistent drop that traced back to a poorly wired USB port I'd installed. Fixing it saved my fridge from dying on a remote camping trip. Anyone have similar rituals that caught hidden issues in their setup?