For its newsletter subscribers only, EverydaySource offers a Crystal Case and Headset Dust Cap for iPhone 4 and 4S for $10.99. Coupon code "S0414QRZJ" cuts it to $3.39 and snags free shipping. That's tied with our mention from a month ago and $5 under the lowest total price we could find for similar items sold separately elsewhere. The headphone dust cap features a pin for easy ejection of your SIM card.