Another good tip, that I had read somewhere...was how to test to see if your electronics remote control is working (ie checking batteries).
First turn on your cellphone camera. Then, all you have to do is aim the infrared remote at your cellphone camera and press any button. Your screen will show up the light emitting from the infrared transmitter.
The guys and I tested this up here at the shop, and it works. We got a big kick from it.
They say the same technique will also work with security cameras, so you can see it's infrared lights.
2011 Flagstaff 831 RLBSS
I've just ordered a chicken and an egg from Amazon.... I will keep you posted.