I buy everything on eBay and I know that the world's biggest online marketplace is also probably the world's biggest online market for fakes.

This does not bother me: my eBay purchases are eclectic and frequent - in the past week alone they have included a rabbit-shaped cake tin, 13 used baby beakers, two garment bags and six bottles of anti-bacterial soap - but not a single Prada item. The stuff I buy on eBay no one would bother to counterfeit.