Harvey Nichols unveils scratch and sniff windows

Head down to London's Harvey Nichols in Knightsbridge tomorrow and not only will you be able to bag a bottle of Marc Jacobs' latest scent, Daisy, one whole month ahead of it's nationwide release, but you'll also be able to play with the stores new scratch and sniff windows.Yes, scratch and sniff windows - really! You'll be able to get a whiff of Daisy by rubbing on the store window, just like those stickers we used to collect at primary school. The frontage will also be carpeted with daisies for two weeks...so there's plenty of time to enjoy this interactive Marc experience.Oh! and the perfume smells great too. (Available from tomorrow at Harvey Nichols and nationwide from September £40)