Office Depot offers the Realspace 33" Height-Adjustable Mobile Laptop Cart in Black/Silver (pictured), model no. LT-001, for $22.49. Coupon code "761699970" cuts it to $20.24. With free shipping, that's $17 off and the lowest total price we could find. Sales tax is added where applicable. It features locking casters, 100-lb. weight capacity, and more.