Logitech V450 Cordless Laser Mouse (Red) for $24.99 shipped after a $10 rebate. Note the black version is available at Amazon for $27.95 after the same $10 rebate. Its nano receiver is so small it stays with the laptop without the need to be unplugged. This cordless mouse supposedly has a 12-monthe battery life. As a comparison, Best Buy has it for about $49.