This offer is only for those with a Kindle with Special Offers:
Get $2 off select Glee CDs
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 November 16 (tomorrow; this is less than the usual 4-day window for signup).
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 December 16 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).
Limit one offer per customer and per device; one item may be used with the promotion code.
Not a huge discount, but $2 off is up to 20%, so not too shabby, either, for the Gleeks on your Christmas list. All of the albums will also give you a $1 credit to use in the MP3 store, increasing the total savings, while the newest Christmas album adds an additional $2 credit.