Laptops may be convenient, but the heat they produce often makes them uncomfortable to use where their name suggests you should. Enter the cooling tray, which usually comes equipped with a USB-powered fan to keep your legs from getting scorched. Katherine Boehret runs down a few choices in the Wall Street Journal.
- Logitech Cooling Pad N100: the least noisy of the powered pads, "so quiet that it was hard to tell if it was on"—and, at $30, one of the cheapest.