Recently I was on vacation and left my D7000 in the hotel room and ended up shooting a show with my D90. It was dark and there were a lot of people in the audience setting behind me so I didn't want my rear LCD screen to review each shot and make a big distracting light go on after each picture. I knew that the Review Image could be turned off in the menu but could not remember where it was located at. I have it in the MY MENU on my D7000 and could not remember where it was at and I needed to do something fast that would eliminate all the bright light of the rear LCD screen. What I used to fix the problem was very simple. I just slid one of my business cards between the screen protector and the LCD screen and it blocked all the light perfectly. It wasn't high tech but it did the job just fine. Just thought I would pass this simple tip on to everyone just in case the situation ever comes up.
Jeff
Jeff