How long do you leave your Christmas lights out for people to admire?

An increasing number of people appear to leave their lights in position (at least those on the roof and walls) all year, but only turn them on in the Christmas season. And for safety, I have to say that is a good idea!

Do you go to visit Christmas lights after Christmas, when life doesn’t seem quite so rushed?

Given Christmas decoration stay up until the 6th January for many places, why shouldn’t the lights also last that long? And why not enjoy them while they last?