Walmart offers the Furinno B&W U-Shaped Laptop Desk for $17.51. (Amazon and Home Depot have it for the same price.) Opt for in-store pickup to dodge the $5.99 shipping fee. That's the best deal we could find by $7, although we saw it for a buck less last month. It measures approximately 19" x 12" x 24" and features rolling caster wheels.