If you link your Amazon account with your Facebook account (or something along those lines), then you get a $5 promotion that is valid on orders that are $35 and above:
http://www.amazon.com/gp/socialmedia/promotions/wishlist2013
"Simply shop on Amazon.com and add items that say "Ships from and sold by Amazon.com" (excluding Kindle devices, digital downloads and gift card purchases). Once you add $35 or more of eligible items to your Cart, proceed to Checkout. On the Review Your Order page, you will see the $5 promotional credit applied in the Order Summary. You have until 11:59 PM PST on Sunday, December 15, 2013 to redeem this credit."
http://www.amazon.com/gp/socialmedia/promotions/wishlist2013
"Simply shop on Amazon.com and add items that say "Ships from and sold by Amazon.com" (excluding Kindle devices, digital downloads and gift card purchases). Once you add $35 or more of eligible items to your Cart, proceed to Checkout. On the Review Your Order page, you will see the $5 promotional credit applied in the Order Summary. You have until 11:59 PM PST on Sunday, December 15, 2013 to redeem this credit."
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