Dan, Even in the sofisticated world of Comercial Aviation we use a simple Zip lock bag to keep parts which must be kept for reinstallation. They are a heavy duty type. They differ little, over heavy duty store bought. They have a little metal grommet to fasten the parts (screws & nuts ) to the component, and they have the words " PARTS" printed on them. I have also used small cheep plastic containers purchased at the dollar store for heavier parts. George 1964 Lebaron project