You can turn it into a privacy monitor! It looks all white to everybody except you, because you are wearing "magic" glasses!
All you really have to have is a pair of old glasses, x-acto knife or a box cutter and some solvent (paint thinner)
Here is what I used:
an LCD monitor of course
single use 3D glasses from the movie theater (old sunglasses are just fine)
paint thinner (or some other solvent such as toluene, turpentine, acetone, methyl acetate, ethyl acetate etc)
box cutter (and CNC laser cutter :) but that you don't really need, I'm sure x-acto knife and a steady hand would do just fine)
screwdriver or a drill
Step 1: Take the monitor apart
Take off the plastic frame by unscrewing all screws from the back.
Step 2: Cut the polarized film
So, grab you cutting tool and cut the films along the edge. Don't be afraid to press, metal wont scratch the glass, unless there is sand or other abrasives on it.
Then, start peeling. Make sure to save the polarized film, also remember the orientation.