I came across a reference the other day to the Japanese tradition of "susuharai". Basically, it's their equivalent of spring-cleaning, but it takes place at the end of the calendar year, before the start of the next year. And it's more than just a physical cleaning out of the house, there is also the intention to be spiritually cleansed. When you clean out your house and attempt to declutter, do you just concentrate on the physical or do you also see it as something more, as a new beginning?
For more information on this and other Japanese traditions, see here.