Ginny - I so agree! When we lived in a remote part of the Aberdeenshire countryside we sometimes had power cuts for up to 5 days in winter. My husband always laughs at me for stocking up, but as you say, bread and a few tins of stuff can make a lot of difference. Even now, with a late night grocery shop right on the corner here in Edinburgh, I tend to keep in a carton of UHT milk - believe me I'm grateful if I realise there's not enough fresh milk for tea first thing in the morning. I am not a great hoarder at all (except where books are concerned) but coffee. tea, milk, chocolate (and maybe a bottle of wine...) would be high on my list of priorities in a prolonged outage. And cat food, to avoid a Major Siamese Scene.
Wood stoves were great when we lived in the country - I recall heating baby food for Anna on one when she was a baby and the power was off. Our last house, which was in a small village, had power cuts whenever East Lothian got too windy (I bet they have one right now actually, it's been blowing a hooley all night and all day) - we could light our gas hob with a match, but we had no heating there that wasn't electric - miserable.
Rosemary