In the UK, in North East London with a population spanning all belief systems there are usually some shops open all the time. There is usually a Tescos or something else somewhere open.
As you say, Easter is the "money shot" of Christianity. I'm not a communicant, and not a very good Christian at that.. but I do respect and keep the holiday. Makes me consider my life and the way I live.

Can't take chocolate in quantity without heaving....