Scent

I love the scent of old cardboard boxes...

This image: Hornby Trains vintage box for platform crane, made in England by Meccano Ltd.

To toy train collectors, the packaging boxes which carry the toy trains are almost as valuable as their content. Therefore, an item sold with its original box is much more sought after than one without it. 

To me it doesn't really matter, although I have to admit that some boxes look very appealing, and when old and weathered, they smell very nice too! I photographed this one to make it look like the bow of a ship. The rusty staples could well be the holes for the anchor.... with a bit of imagination, that is.