Quote Originally Posted by OlafTheBrave
I will back this one up as it is something I did a few years back. I didn't do it so much for the energy savings but I simply got tired of buying lightbulbs all the time. For some reason at my previous residence incandescents would just not last long at all. I think so far I have had two bulbs out of six that were about six years old burn out. Which is great considering my normal bulbs were lasting about 2 monts or so.
One thing I've seen burn out standard bulbs out really fast is cold temps. It's almost like the filaments go through some sort of transition zone temperature wise that makes them brittle. The heating/cooling cycle must be hard on them. When flipping on lights in sheds, barns, or homes that are at or below freezing, I've found the bulbs tend to have very short lives.

Another thing that can get you is if the voltage to the house is varying a lot. I had some problems with the service wiring in a house once, the voltage would swing around over a range of about 5 volts at times, particularly when the washing machine was running. The lights were dimming and brightening in cycle with it. Couldn't have been good for them, as I changed out quite a few bulbs.