One thing I've learned from insomnia. I can find my way all over the house at night without turning on any lights. It's all those LED's glowing in every room. They are on the computer, the telephone, the microwave, several clocks, the VCR, the smoke detectors, the CO detector, the answering machine, the grits fixer, the coffee maker, the electric blanket, the light switch, the scanner, the other scanner, the cell phone charger, the battery charger, the doorbell, the oven, the hair dryer, the bread machine and even a couple of night lights. The center brake light on my car even has them, but like to one on the door bell, they aren't much use inside the house.
Everything is a learning experience.
Howard