Woot offers Mind Reader 9-to-5 Collection, Office Chair Mat, Anti-Skid, 48 x 36, PVC, Clear for $14.99 (orig. $32.61). Free shipping for Prime Members.

Product Description:
This PVC floor mat keeps you mobile and provides you the comfort you need while working. It works best on low pile carpeting and has molded cleats to keep it in place. The mat is made from pliable PVC so this rugged office mat is less likely to tear or break. Avoid constantly replacing thin, torn-up, cracked computer mats. To clean your office mat, simply wipe with a soft cloth using mild soap and water. This mat ships flat and there's no assembly required.

• Stays in place: This plastic mat lets you twist, slide, and turn your chair without the worry of slippage
• Protects carpeting: Keep low pile carpets from damage with a protective floor mat made of strong, and durable polypropylene
• Safe and healthy: Polypropylene is a thermoplastic, flexible polymer used in many common household items
• Improve comfort: People who spend long hours laboring at a desk may sustain pain from an aching back or stiff neck. Rolling and fidgeting are common efforts to get comfortable. A non-skid floor mat can help you move about
• Oversized: This easy-glide PVC mat complements your favorite computer chair easily, regardless of seat size, and it measures 47.5 long x 35.5 inches wide x .1 tall (121.9 x 91.1 centimeters)
• Imported