Ikea’s smart lights are almost comedically cheap, but really useful in their flexibility. You’ll need the gateway, which connects to your router and controls the bulbs, but that’s just $39. Then you can choose whatever bulbs you need, starting from $19 – there are options for small and larger fittings, as well as spotlights (though, this being Ikea, there are no bayonet-ended bulbs). Even cooler, there are larger light panels available, so you can turn your wardrobe door into a big smart light if you feel like it. When you’ve got the bulbs and gateway, you can set the brightness of the lights, play with their colour tone, choose their schedule, use voice controls to activate them, and group them so it’s easy to set a mood or turn everything…