This offer is only for those with a Kindle with Special Offers:
Save 40% on select Kindle covers at Amazon.com
Click on offer, then click on the link on the offer page to receive an email with the promotion code. Sign-up for this offer expires on September 5.
You'll get an email (right away), a link to the Special Offer page and a promotion code to enter at checkout. Once you have the promotional code, you have until October 5 to complete your purchase. Like previous offers, this one requires you to use the full checkout process in order to enter your promotional code. Also, like all Amazon sales that use promotional codes, if you have a gift card balance, you must use it for the payment (if there is not a sufficient balance, then you can pick which credit card or other payment to use).
This offer can be used more than once per account, so long as you have more than one KSO registered. Just click on the ad on each device to receive the individual promotion codes via email.
Not quite as good a deal as the early KSO adopters received and a more limited selection (looks like unlighted covers only), it's still a decent discount (and should be stackable with the $5 off offer, if you haven't used it). If your KSO is naked, I'd recommend that you do get a cover - it's only a matter of time before you do drop it accidentally (or it gets knocked off the table) and the cover offers a great deal of protection (although it isn't foolproof). I think most of ours have been dropped at least once and we haven't broken one of them, so far, which I attribute to having covers on them all.