I must admit up front that I never hopped on board the Tumblr train during its meteoric rise these past few years. While I’ve taken a fair stab at setting up a few blogs, I could never quite get the app to stick with me in the same way that a personal WordPress site (or even Medium) has been able to do. That being said, I think Tumblr is one of the coolest apps in the world right now with world-cl