Pressy
Think of Pressy ($20) as an IFTTT button made just for your Android smartphone — as in, press it once and instantly snap a photo, press it twice and share your location to your favorite social network. This little button slides into your headphone jack, and includes an app that lets you customize commands to respond to a sequence of short and long presses. It can let you do pretty much anything, without even unlocking your phone. When you want to use your headphones, the switch on your earbuds doubles as a programmable button, and Pressy slips into its keychain sleeve. The only drawback is it's not available for iOS, and may never be. [Scouted by Abdel]