[!purse.jpg](http://canadiandesignresource.ca/wp-content/uploads/2008/07/purse.jpg) A team of six women researchers at Simon Fraser University in Vancouver, have invented a purse called the Ladybag that doesn’t let you forget your keys, cell phone, wallet or husband. RFID tags are inserted into your “stuff,” and a reader at the bottom of the purse makes sure they’re all there before you leave the house. If something is missing, a pattern associated with that item lights up on the outside of the bag.