Sitting around and waiting for society to reconstitute itself can take some time, and you can only play so much solitaire until you need to burn your last deck of cards for warmth. But if you're lucky enough to wind up hiding out with the Dutch designers who created Woven, you won't need to fear boredom. It's a game system that's -- you guessed it -- woven into a shirt and runs off a smartphone. You might have so much fun you'll hope the end of the world never ends.