Besides the basics:
Water
Food
Shelter
A way to stay warm -

I think a way to stay clean is important too. I have always liked Lehman's as a source of non-electric goods. They have had this hand-washer for as long as I've known about them and yes, it's small, so if you have a family, it might not do. But, with others relying on wringer washers in a long-term scenario, this might be a reasonable option for some.

http://www.lehmans.com/jump.jsp?itemID=1600&itemType=PRODUCT&path=1%2C2%2C679%2C673%2C674