Two items acquired by me today, after years of hankering after each: A bottle of Kolnisch Wasser (4711) and an Ordnance Survey map of my area, scale: one inch to one hell of a walk.
The map cost £6.99 and the Cologne cost two ingots of pure beeswax weighing a total of about 2 pounds. One fragrance swapped for another.
I don't know who got the best deal, but I know which Napoleon would have opted for. I suppose he could have used the wax to make Elba-grease, though - GEDDITT?!