OK, so far:

List of must-haves

Fire extinguisher
Duct tape
metal foil tape
spare bulbs for your light fixtures (in and out),
a supply of rope and bungee cords
heavy-duty citrus cleaner
bleach
crazy glue
wrenches and metal what-nots (more to follow)
fifth of Chivas (or good scotch)

What else? I still have lots of room...