HandHeldItems takes an extra 20% off iPhone 4 and 4S cases via coupon code "20iphonecs". With prices starting at $1.59 after coupon, it's tied with our mention from last week as the best discount we've seen on these items from HandHeldItems in recent months. Shipping starts at $2.85, although many items receive free shipping.

A best bet is the Luxury PU Leather Skin Back Glass Protector for Apple iPhone 4 or 4S in six colors (Blue Crocodile pictured) with a $1 HHI credit for $1.99 before coupon, $1.59 after. With $2.85 for shipping, that's $17 off list and the best price we've seen for this glass protector. It's compatible with the Apple bumper case and features an anti-slip surface.