Here is a way to use the corner in a living room to mount the Xbox 360 Kinect Sensor
Step 1: Buy a 3M Command Corner Shelf
Buy a 3M Command Corner Shelf usually used in the Bathroom.
Step 2: Follow Instructions on the Back of the Box
Follow instructions on the back of the 3M box
Step 3: Put Kinect Sensor on the Corner Shelf
Put Kinect Sensor on the corner Shelf
Step 4: Use the Kinect Tuner
Use the Kinect Tuner to tune the Kinect Sensor's new position. Your corner may be a bit too high. Mounting the corner at eye level is advised if possible.
Enjoy your new Kinect setup.