I HAD to build myself a new shed before I could start working, or it was going to fall down on me!!
Discovered white ants in the walls, that got worse the more I looked.
My 'shed' used to be what we call a 'Granny Flat' here in OZ, (I think you guys call them Bungalows?) that was two room with a dropped level laundry/bathroom at the back.
I added new top slab at the back to give me a longer level floor.