Windows 8 has been designed to work well with touch screens, but what if you are running it on a computer that doesn’t have a touch interface? These new products from Logitech allow you to add touch to your current laptop just by replacing your mouse or adding a touchpad. The Zone Touch Mouse T400 (top left, $49.99) adds touch to a traditional mouse, with a glass touch zone that allows horizontal and vertical scrolling and a single action that quickly returns you to the start screen. The Touch Mouse T620 (top right, $69.99) has a touch-all-over surface that lets you “effortlessly swipe, scroll, tap and click for a more efficient and productive experience.” It also has a quick return to the start screen. Both mice are optical. The Wireless Rechargeable Touchpad T650 (bottom, $79.99) has a rechargeable battery that gives you up to one month between charges. It has plenty of room to perform up to 13 unique Windows 8 gestures. All three devices use 24GHz wireless technology and have a nano-sized receiver that can connect up to 6 compatible devices. All three devices can be customized using Logitech’s optional SetPoint software. All are available at Logitech.