Nonbelief is on the rise. Experts predict that faith in a higher power will eventually disappear from the West, and Americans who are unaffiliated with any religious tradition are the fastest growing "religious" group in the country. If you're an atheist, agnostic, or nonbeliever of any stripe, we want to know: How do you celebrate the holidays, if at all? Do you follow any holiday traditions, in appreciation of the cultural and communal aspects of the season? Or do you make a point to treat December's religious holidays just like any other day? Share your photos, videos and stories on iReport. Sign up today -- The best submissions could be featured on CNN.com! The deadline for this assignment is Sunday, December 18. New: This assignment is now closed. We featured many of your contributions in this interactive scrolling quote wall. Keywords: religion, holiday, atheism, christma, journalism, news, socialmedia, cnn, citizenjournalism