Microsoft Arc Mouse
The Microsoft Arc mouse solves the problem most office goers have of trying to carry a bulky mouse in your pants pocket, or in your hand with your laptop, while moving from your workspace to a meeting. This mouse folds flat to slimly fit in your pants or jacket pocket, allowing you to carry it around easily, with no awkward bulge in your pocket. The battery life is great, lasts about 4 months on two AAAs, and the scroll panel has a reactionary click, making it feel like a classic wheel where none truly exists. Its almost like magic.
Available on Microsoft.com for $60