Apart from all the other issues mentioned in this thread, one of the issues that stymies products like this is the asymmetric nature of delivery networks. From a user experience perspective, it&#x27;s a lot easier to deliver something TO a person&#x27;s house than it is to deliver something FROM a person&#x27;s house. After your first attempt trying to return a tool, you become discouraged from ever trying again.<p>But you know what, we actually have a highly efficient system for transporting packages from people&#x27;s houses, it&#x27;s called the trash and recycling network. I wonder if there&#x27;s an opportunity there to leverage this network... Imagine if returning something was as easy as wrapping it in a special plastic bag and then throwing it in your recycle bin. On the truck, special sensors would detect the presence of the bag and shunt it to a separate storage area of the truck and, from the depot, it would be placed in the conventional mail stream and sent to where it needed to be.<p>Probably crazy unworkable but fun to think about :).