We already use our hands for many things, but why not using it for even more ?
There are already some prototypes of electronic gloves used for music, or gaming :
Gesture Jam Glove for Musicians, DJs or the next generation Wii games
The Wearable Electronic Wii controller – meet the Fingertip control glove
But why not using this in the house ?
To turn on/off the lights, to open the main door when someone comes to your house and your busy in the kitchen, to control the volume of the music and many other things that could be done remotly.