Lenovo Yoga Tab 3 Pro Projector. I went into one of our conference rooms, shut off the lights, pulled down the blinds and filled up a wall with the trailer for Captain America: Civil War that I had just watched on the display.

It still looked great, but the picture wasn't as bright as I would have liked. Without a fairly dark room, images may be a bit dim, but the closer you are to the wall, the brighter the image will be.

Smart electronics are akin to robots that shut off the lights when you leave the room. If you can't remember to unplug appliances when they're not in use but want to keep your home an eco-friendly haven, consider picking up a smart energy power strip.

Voice control your home. Use Amazon Echo to switch on the lamp before getting out of bed, turn on the coffee maker on your way to the kitchen, or dim the lights from the couch to watch a movie — all without lifting a finger.

Ask Alexa to turn on the TV, turn up the volume, change the channel, or play your favorite movie. Echo can control your Fire TV and select devices from Sony, Dish, and Logitech. Control multiple devices at scheduled times or with a single voice command, like locking the doors and turning off the lights when you go to bed.