Well I am from Nova Scotia and I am completely against Sunday Shopping. It is not because I am religious, but the idea that there is a day when you don't have to worry about work, or shopping lists, is kinda nice. Instead your biggest decision is whether you should go fishing, or hang out with some friends. I agree with Haggis, having sunday as just sunday is nice.
Honestly, if you are not capable of getting what needs to be done in six days, you don't deserve a seventh day to do it. How hard is it to pick up milk before sunday, you have six days, with some stores open 24 hours. And besides, I am pretty sure that most mechanics are closed on Saturdays or only open till 3pm anyways, so I am pretty sure they would be closed on Sunday too, so if your car needed to be fixed you would still have to wait till monday anyway.
I just think that it is really sad that our society is so focused on making money, and shopping, "keeping the economy running"...I think that it is necessary for there to be a day off. I think that we are better off than the rest of you, we have a day set aside each week to smell the roses, you have to fit it into your schedule...so who really has the inconvience.