In case you don’t visit every day (which is probably a good thing), Amazon.com is giving $8.62 off $50+ orders with promo code BIGTHANKS. Valid until 11:59pm Pacific 2/22 only. Must be shipped and sold by Amazon.
If you need filler ideas, you can’t buy Amazon gift cards but you can buy gift cards to other retailers like Starbucks or Whole Foods gift cards for any amount over $25. For example, you could buy something for $15 and buy a $35 gift card to get to $50.