Ever wonder how those scratch and sniff stickers manage to pack a punch of aroma into what looks like ordinary paper? The technology behind it is deceptively clever, and has been used everywhere ...

Ever wonder how those scratch and sniff stickers manage to pack a punch of aroma into what looks like ordinary paper? The technology behind it is deceptively clever, and has been used everywhere ...

Simply apply a sticker on your clothes where it's easy to smell the essential oils, like near your shirt's collar. The patches begin working within 30 minutes and last for up to eight hours.