A "lighted" toggle switch causes premature failure in lightbulbs.This is a conclusion I came to when I installed one of those new "energy saving" flourescent lightbulbs in the hallway. It causes the new lamp to blink slightly every two seconds when it is turned off. When it is ON, it works great. When it is OFF, it blinks. Right now, you are probably thinking "this guy is a crackpot" or "this guy if $%$%#$% nuts and you will continue to think this UNTIL you try it yourself. What I am talking about is the residential wall switch that has a little light in the toggle that glows reddish orange when the light is OFF, making it easier to find in the dark. Lots of people have them in dark areas. If you have one - temporarily replace the current lightbulb with an "energy saving" flourescent bulb. Size of the new lamp doesn't matter. Go to the lighted wall switch, turn it ON. As it warms up it does a good job. Now, turn the switch OFF. Watch carefully a few seconds and it will blink and a few seconds later it will blink again. Forever or until the starting circuit in the lamp fails. It won't be a big flash type blink but rather a small blink at the base. Just enough that it will get your attention. I am so sure of this that I will bet anybody that tries it a rep click and if it doesn't work - You name what you win just so it can be done here on the BOC. This has to be "normal" stuff like you get a Loews or Home Depot. You must have a "lighted" type wall switch that turns on - off the fixture that the new flourescent lamp screws in to. It also doesn't seem to matter if the bulb is up - down - or sideways, just screw it in. Done. Reply back if you give it a try. I have since found out why this happens and will explain after you try it.