Maybe it's because it doesn't promise to change your life (it won't) and you don't need to use it every day (you won't), but PackPoint is quickly becoming the only app I have any interest in. Revel in this quiet brilliance: Tell PackPoint where you're going, when, for how long, and what you're planning on doing (working, hiking, fancy dining, etc.) and voilà, receive a customized packing list ready for you to check off within seconds. It's thought of everything (Did you bring your business cards? Enough underwear—or will there be opportunities for laundry?) down to any impending weather disasters.

In the week since I've downloaded it, I've already generated lists for three trips—all that's missing are my vacation days...

—Emily Ferber

Photo by Tom Newton.