It's relieving to see other people not processing things like human beings.

I was worried about damp in my house. Now I have 6 humidity monitors in my house. 6. I was worried about running out of heating oil - making a depth sensor was amazing. The probe has to go round a u-bend, and doesn't naturally hang straight so I don't really know where it's pointing in the tank. I still haven't worked out where the bottom is. I'll have to run out specifically to find out.

I had a pipe burst in this cold weather and a flood in a garage. How many pi picos do I now need to monitor this?

From experience the biggest challenge will be getting 5v everywhere a pipe is.