It’s not too late to get ready to give trick-or-treaters a fright on Halloween night. Philips Hue offers 20% discounts on various HomeKit-compatible multicolor lighting packages. Think what you could do with a well-placed Grim Reaper and a motion-activated spotlight, for example. And maybe a blood-red lightstrip along the hedge. Throw in a few fiery jack-o’-lanterns, and you’re good to go.