AP Photo

I’ve always been a big fan and committed user of Dropbox. Over the last couple years the handy file-sync app has gotten me out of many scrapes—when I need to access six-month-old interview notes when I’m out of town, it’s always a thrill to find them in my Dropbox. Along with mysit/stand desk, my Livescribe pen, and my MacBook Air, Dropbox is one of the few genuinely delightful tools I use regularly, and I’m constantly recommending it to friends and...