Using the Makita P - 83668 MAKPAC Interlocking Case Hand Tool Insert Tray is a breeze. Just place it inside your MAKPAC Interlocking Case. Then, arrange your hand tools in the large recessed sections. This way, you can easily reach for the tools you need. When it comes to maintenance, you can wipe it down with a dry cloth regularly to keep it clean. As for storage, make sure to keep it in a dry place to prevent any damage. Also, don't overload it with too many heavy tools, as this could affect its durability.