Ever have a pesky spring shoot across the room when disassembling a firearm?
Get a large clear plastic bag and put the unloaded firearm and tools inside. Put in your hands and have someone tape the bag shut. When the spring pops, it will still be in the bag. Assembling the firearm in the bag will also keep that pesky spring from sailing across the room never to be found again.
Alternatively, get a very large ZipLock plastic bag. Cut two holes in the bottom and glue or tape two surgical gloves. Place the unloaded firearm in the bag, zip it up and slip your hands in the gloves to do the work.