If you are the sort of person who has their cellphone stuffed in the bottom of your laptop bag, and can never hear it ring, then you need one of these Mathmos Flashing badges.
The Mathmos Flashing badge can be put onto your latop bag, or anything you choose and when there is an incoming call it will flash.
Each badge measures 3cm x 3cm 1 cm, and you can either have a choice of a blue or red, it also comes with a battery.
If you want one they are available for $8.60 from find me a gift.
via Gizmo Diva