This offer is only for those with a Kindle with Special Offers:
Save $20 on a $50 purchase of select automotive winter products
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 October 23.
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 November 23 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.
Don't be fooled by the title on this offer. There are a number of products that you can use any time of the year, such as battery chargers, socket extenders, windshield screens (I only use these in summer), emergency hammers/signals/kits, etc. There's a couple of plug-in inverter/USB chargers that would be handy for charging your electronics in older cars. There are even a few items for those that have no car at all, such as winter headgear that you can wear on a motorcycle or when snowmobiling/skiing.