Just found out that Stealth Guard Protectors has a deal where you get 50% off your order if you go to their page and click on the banner that says "Save 50% on Your Next Order," and sign up for their newsletter and they will immediately email you a promo code for 50% off. Then, just place your order and put the promo code in the promo code section during checkout. That means you get two full skins for your device for only $7.50!!!!!! That's a better deal than InvisibleSHIELD or Best Skins Ever.
Not sure how long this is gonna last - I just saw this today.