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By Devin Coldewey

Amazon's Dash buttons, which let users of the online retailer order a variety of products with the press of a button, are now available to purchase — if you have a Prime membership. For $5, you'll never have to worry about picking up a case of Smartwater or pack of mac and cheese again — just hit the button and you'll be restocked in no time. Well, in a day or two — but that's still pretty quick.

The battery-powered buttons order over Wi-Fi, and have a sticky back so you can mount them where you're most likely to notice you're out of an item. And don't worry about the kid playing with it and accidentally ordering two dozen bottles of lotion. Amazon will confirm with you that the order was made, and won't place another until the first one arrives.

Eighteen products are covered by Dash buttons at present, from cleaning supplies to baby food, and presumably more will be added if these buttons are a hit.