Regarding your idea about the „personal Amazon attic“ which you show to your friends, I wanted to let you know that we are currently working on something very similar.

ShelfFlip (www.shelfFlip.com) makes it very easy to create a list of all your products (by analyzing your received order confirmations or your amazon purchase history) and then lets you put selected products on your personal sales page (your “shelf” - which you can then send to your friends).

I am very curious what you think about it.