SPEND $50, GET A $15 CREDIT: As of July 31, Amazon shoppers get a $15 credit when they spend $50 on household essentials, like cleaning supplies, batteries, laundry gear, insect traps, and more.

You have to buy household essentials anyway, so why not get some free money while you stock up?
As of July 31, when you purchase $50 worth of household essentials at Amazon, you'll get a $15 credit back. Just load up your Amazon cart with items from the promo page until you reach the $50 threshold. The offer will then automatically be applied at checkout and, once shipment is complete, you'll receive an email from Amazon letting you know that a $15 credit has been added to your account. You can use the credit on anything you want.
The list of products included in the promotion is lengthy, so there's a pretty high chance it includes items you regularly use and need to stock up on. Just to give you a little taste, there's STEM bug traps, Clorox wipes, Kleenex, toilet paper from many brands, dishwasher detergent, laundry pods, paper towels, baby wipes, all-purpose cleaners, batteries, trash bags, Ziploc bags, and so much more. I scrolled for 10 minutes and still didn't reach the end of the list.
It's worth noting that Target is running a similar deal, but you need to be a Circle member (which is free to join) to score the free gift card. With this Amazon promotion, you (surprisingly) don't even need to be a Prime member. You will, however, need an Amazon account to check out and receive your credit.