Each morning on the farm I clean out coops and change waterers, messy business that requires gloves. And, because corners of the coops are dark, a headlamp. The pain is turning it on and off; the button on my BioLite headlamp is tiny, and my gloves are often dirty, so I have to pull the gloves off to activate/deactivate the headlamp.Tradespeople also run into this problem, and their needs have been answered by this NightBuddy 230. A quick swipe of the hand in front of a sensor turns the light on or off: The $35 unit features five lighting modes, including a red light that won't attract bugs or animals. Overall it draws rave reviews online from mechanics, plumbers, installers, campers and more. Companies pushing AR and VR products are still working out gesture control, but here's an example of an existing application that already makes a difference in people's daily lives.