That really depends on your definition of "sin".
Do I break the ten commandments? Absolutely.
I have no problems "taking the lord's name in vain" and while I do not have any other gods before "him" I don't have "him" there either. Also, I covet all over the place.
Have I committed any of the so called seven mortal sins? Definitely.
I lust, some would call me proud, I have over-eaten (especially during the winter vacation that you call Christmas), being a citizen in one of the richest countries in the world probably gives me greed just by association, and when I feel like it I'm lazy as dirt.
So, yeah, it really depends on your definition.