Finger-detecting buttons

We’ve a TV and a monitor that are both impossible to turn off in the dark because you can’t feel any buttons. The surface is entirely smooth, and by the time you find the power button you’ve already changed the input and enabled SAP.

Easy fix: put a dot of glue by the button, near the edge of the device. Then you rub your finger along the side and when you feel a slight texture change, go 90° and bam, device is off.

The glue also works wonders for chatty kids.