Whenever we build our Intel Servers with hot swap capabilities, we save the hot swap drive carrier trays.
They stack very neatly, and provide a convenient place to store screws and such that we are removing from a system we are building, or a client's system that we are working on.
This way, we can keep track of absolutely everything that came out of a system, and not worry if we are missing anything, or missed something in the assembly or reassembly of a system.
Happy System Building,
Microsoft Small Business Specialists.