When your arms are loaded with groceries, laundry or such, with no hand free for a light, the going can be rough. Today you'll learn how to brighten the way when your hands aren't free to turn on a light. The answer is motion-sensor lighting, and it is a perfect solution for areas such as the laundry room, garage or the attic where you frequently enter or leave with hands too full to turn a light on or off. Motion-sensor units attached to standard screw-in light-bulb sockets are sold in hardware stores and home centers for about $20. Other options include motion-sensors that replace standard toggle-type light switches. With any type, the light will stay on as long as the unit senses motion. For more tips, visit our Web site at onthehouse.com. And that's the On The House tip for today.