King Jim's NeutralBOX designs solve the problem of packing away a box, sealing it up and forgetting its contents. The boxes feature a small digital tagging system on one side that helps people specify what's inside. The tags on the boxes can coordinated with a photo, which helps to show the exact contents of the box during the time of packing.
If you're super organized, this is a pretty great system, especially since you'll be able to flip through photos on a mobile device instead of having to rifle through a bunch of boxes in order to find whatever it is you packed away.
The NeutralBOXes themselves come in four different sizes that range from $7 at the smallest to about $13 for the largest.