New Year is still the biggest holiday in Russia and Christmas is not so big. Christmas in Russia is kinda like New Year(except for NY) in US and New Year in Russia is like Christmas in US - gift- and congratulations- wise. Many people go to church that day (even people who go to church twice a year)
посыпаю голову пеплом
I was using Lingvo translator because I didn't know exact translation, thank you