Start here: the best apps for all your new devices

Christmas morning is over. The fire is roaring with wrapping paper, broken candy cane pieces litter the phone, and you've just opened a brand-new gadget. Maybe it's a new PlayStation 4, or an iPhone 5C, or the Windows tablet you've been not-so-subtly asking for all year. You've unwrapped it, torn the box to shreds, and turned it on. Now what?