I clean my home - it's supposed to get rid of the bad luck from the old year. I also really believe that the fashion in which you enter the new year is an omen for how that year will go, which is why I always try to spend the night with people I really care about, and cherish little signs of hope or good fortune.
Most Helpful Guy
It can have a psychological affect. A lot of people make resolutions, and some even keep them. Resolutions are always about good things, so even if 0.1% keep them it's good. It's purely psychological, but if it works who cares?