Amazon Dash: What Products Would You Order With the Push of a Button?

The biggest online retailer in the country wants to change the way you shop, and it's hoping it can do this with the help of a clever little button that many of us mistook for an April Fool's prank.
Amazon's Dash Buttons are indeed physical buttons that are WiFi-enabled and are meant to adhere to whatever surface is near a corresponding product that you use frequently. (For example: A Tide detergent button on your washing machine.) There are over 255 products from 18 companies that are eligible to work with the button, including popular household brands like Tide, Keurig, Olay, Huggies, and Bounty.
When a user runs out of said item, he or she can just push the button to order more. Amazon will then send an order alert to their phone in case they'd like to cancel. The problem it tries to solve is how easy is is to forget what items we need to restock, once we're no longer in front of the item in question. In Amazon's mind, it'd be more convenient to order necessities at the moment we notice that we're running low.
This would appear to be an extension of a previous concept from Amazon, the Dash barcode scanner and microphone, which seemingly didn't take off. But can these buttons avoid their predecessor's fate if there are such a limited number of participating companies? Or is this alternatively a concept that Amazon knows has a limited lifespan, but importantly primes the consumer to crave that instant documentation of needs... leading them to the Amazon Echo, which has list-making functions and is "always on"?
Regardless of Amazon's intentions, we ask you, dear readers: What product(s) do you love and consume so much that you would personally benefit from having a Dash Button? Perhaps it's your favorite snack, a specific cereal, or your favorite bottle of wine. (We promise, we won't judge!) Let us know in the comments below!

I like this idea and hope that it flourishes.