Paydeals offers the OtterBox Commuter Series Case for Samsung Galaxy S4 in Black (pictured) for $9.99 with free shipping. That's $6 below our mention from a year ago and the lowest total price we've seen. (It's a current low for the case in any color by $5.) It features port covers to block the entry of dust and debris.

It's also available for the Galaxy S5 in Black for $12.99 with free shipping. That's the lowest total price we could find by $7.

Update: New customers can apply coupon code "PAYDEALS" to cut an extra $1 off the above prices.