XtremeGuard offers its Screen Protector for Apple iPhone 5 for $4.99. Add two to your cart for $9.98 and apply coupon code "85OFF2" to cut it to $1.50 (75 cents apiece). With free shipping, that's the lowest total per-unit price we could find for screen protectors for iPhone 5 by under a buck.

Also available is the XtremeGuard Body Protector for Apple iPhone 5 for $9.99. Buy two with the same coupon code and it drops to $3. With free shipping, that's $1.50 each and the lowest total price we could find for such protectors by $11.