I'm wondering if it would be worth building some
form of "small thing
disassembly box" to alleviate this problem.
Basically, you take a 40-litre under-bed storage box (~?5,
Poundstretcher), flip it upside down (thus turning the lid into the
base) and use a holesaw to drill two large holes in the side big
enough
to put your hands through. Optionally attach some thin elbow-length
gloves to these holes so your hands go through the gloves and into
the box.
This way, anything that decides to "ping" off into never-never-land
will
be restricted to "pinging" into one of the walls of the box. Gravity
ensures that any tiny little things which choose to do this will end
up
in or near the bottom of the box.
Taking things apart in a photographic developing tray is a good start.
It won't keep things from pinging off to somewhere where only the cat
will find them, but it catches things like small screws and
ball-bearings that fall out. I like to use old plastic 35mm film
containers to keep small items in, one container for each
subsystem/part/whatever, keeps related parts together so you don't end
up with 55 nearly identical screws that you can't remember where they
went. Taking pictures as you go along with a simple digital camera also
helps if you do not have a service manual.
/Jonas