What's your home address? I just want to buy the spanner please. What's your home address? What? We can't sell you a spanner for VAT reasons without having your home address sir! What? I just brought a sandwich whilst in Sainsburys and a USB pen at PCWorld but they didn't need my home address so are they acting illegally? Well we can only authorize a purchase with your home address or we have to go and get a manager to create an over ride code! We don't use if for marketing or alike! OK then what do you need it for then... You know what mate... Keep the spanner and I'll stay off of your pathetic mailshot campaigns (because why would you need my address if you are never going to use it you plonker!)