Head on over to the SensationNail Facebook page, “like” them, click on the Fan Appreciation tab, click on the Submit an Entry button and then submit a photo of your SensatioNail mani or pedi. The first 3,000 to complete the entry requirements will each win a FREE gel polish color from the 2012 limited edition color collection. From what I can tell, these gel polishes typically retail for $11.99. Note that you can upload up to 5 different photos so each person can win up to 5 free gel polishes.
(Thanks, Free Stuff Times!)