Do you have crystal chandeliers? I have several. As I began to decorate for Christmas, I looked at my dining room chandelier and thought "oh yuck"! Way too much dust. They didn't even sparkle. Should have taken a picture when it was dirty.
Someone posted awhile back about how to clean crystal chandeliers, but I forgot to save it so that was out.
It is rather overcast today so I had the lights on.