Shop4Tech.com offers the Weight Guard Luggage Scale for $5.87. Coupon code "ES15" drops it to $4.99. With free shipping, that's $3 under our December mention and the lowest total price we could find by $2. Use this device to determine if your luggage is overweight (thus incurring extra airline fees) or just big-boned. It features accuracy within 2 lbs. and can weigh luggage up to 75 lbs. Coupon expires March 20.