What I initially thought was an April Fool's joke now counts 250 different options to its name. I'm talking about Amazon's Dash Button and today the online retailer announced that the total number of one-touch ordering devices has hit the aforementioned tally. To get there, the company added 50 more of the re-ordering tools from brands like Seventh Generation, Colgate, Emergen-C, Kingsford, KY, Lifestyles, Rogaine and more. Just how popular are they? Amazon says some brands are receiving more than half of their orders from Dash Buttons.