Woot offers ERA EZ-Traxion Traction Aids Durable Grip for Slippery Surfaces, Set of 2, Orange for $13.99 (orig. $26.36).  Free shipping for Prime Members.

Product Features:
ERA EZ-Traxion Traction Aids — Durable Grip for Slippery Surfaces, Set of 2, Orange

• Set of 2 polypropylene tire traction mats
• Bright orange color for high visibility
• Jagged teeth on bottom for excellent grip
• Lightweight and compact design for easy storage
• Ideal for regaining traction on slippery roads