I go every Sunday that I’m not working, and occasionally to daily Mass.
Roman Catholic
Until this summer it was (most) every Sunday and once or twice during the week. Suburban Plankton and I have a terrible time going during the summer. I don’t know why. I started a new job halfway through the summer and that precluded me going to daily mass. Somehow, we just never started up again in the fall. I am using Advent as an impetus to start going on a regular basis again. I miss it.
Only two of those are still non-Sunday days of obligation in Australia: the Assumption and Christmas. The most appalling example of a “shift to Sunday” has to have been the feast of the Ascension.
Atheist.
I go for weddings, funerals, baptisms. Also when I’m with my parents during a religious holiday - last time was a Catholic wedding in Ireland about three months ago; before that was Christmas, 2005.
Every Sunday, plus occasional special services (Christmas Eve, Ash Wednesday, Maundy Thursday, Good Friday, etc).
When I was on our vestry (board of directors, basically) of our parish, I had meetings at the church at least once a week as well, but I don’t think you would count that since they were business meetings and not worship services.
I see where the canon lists your ten, but St Joseph, Sts Peter and Paul and Epiphany weren’t even on the list when I was a kid 35 years ago.
Here’s the 1991 list in the US:
In addition to Sunday, the days to be observed as holy days of obligation in the Latin Rite dioceses of the United States of America, in conformity with canon 1246, are as follows:
January 1, the solemnity of Mary, Mother of God;
Thursday of the Sixth Week of Easter, the solemnity of the Ascension;
August 15, the solemnity of the Assumption of the Blessed Virgin Mary;
November 1, the solemnity of All Saints;
December 8, the solemnity of the Immaculate Conception;
December 25, the solemnity of the Nativity of Our Lord Jesus Christ.
which is what I remember from grade school.
Huh. So the Immaculate Conception isn’t a required day in Canada. That seems like an awfully short list of obligatory feasts.
Colour me surprised by Czarcasm’s answer as well. I’d sort of thought he was an atheist or agnostic.
I think maybe **Czar ** was just having a bit of fun.
Another weddings/funerals type here. I think the last time was about a year ago.
C & E Episcopalian. I haven’t been a regular churchgoer in two years. Went regularly to my church for seven years prior to my absence. Weird reason I haven’t been in so long: have had many changes, including very significant job changes, in the past two years. The folks at my church are awesome friendly and very sweet, and I was fairly involved in church doings before (served on committees, went to all coffee hours, etc.). If I go back I honestly don’t want to talk a lot about my private/job life to these people, which they’d inevitably ask about.
There’s another Episcopal church right down the road, but I don’t want to go there either and be a “church hopper”. Also, I don’t want to explain why I left the other church (which would surely come up), because it sounds weird. Hell, it even sounds weird to me.
Roman Catholic, once a week usually and most holy days of obligation, depending on laziness/business.
I go most Sundays and for the occasional special service (Thanksgiving Eve, for example, and Holy Week services). I used to be in lay leadership, so I had to go for more meetings and stuff, but having a baby is a great way to get out of those sorts of things. 
I’ll be going tomorrow night to decorate for our annual Swedish Christmas festival – can’t get out of everything!
I’m Covenant, btw.
I go every single Sunday, plus on various special occasions.
Generally every week, barring illness.
I don’t go voluntarily. I’m dragged, kicking and screaming, and only for things like friends’ weddings or funerals, and I get out of there as fast as humanly possible when it’s done.
Never been. Though being raised as secularly Jewish probably has something to do with that…
Weddings and funerals only. The older I get, the more of these a year I attend.
I’m not supposed to take communion, but I usually do anyway.
About once a week 40-45 weeks/year, give or take.
Special services more often than not.
I’m generically protestant, attending a Presbyterian church.
It seems obvious that a “Day of Obligation” is a day you have to go to mass. What, pray tell, is the penalty for not going?
Does the priest show up and get medieval on you?
Great. Now I have “The Inquisition, what a show. The inquisition, here we go…” whining through my head right now.
Every Sunday that I am not working/out of town and able.
Lately that is less and less. 
This Sunday it’s ON!