Gadgets are good !
I've always been one for the latest technological
gismos, especially when I can use them as an aid
to my work. This one, the 'Palm Scope, I got from Lowes
for about $100.
It has has been an invaluable tool, when trying to see things in difficult to get at places, or if you want to investigate inside a wall, without making a lot of large holes in it. It has 24" flexible wand, on the end is a small video camera and LED light, which will fit through a 3/8" hole. It comes with an
assortment of attachments, a hook with a magnet, and a mirror that lets you see sideways.