Lighthearted, obviously! (And yes, before anyone says, clearly it would be the tinfoil hat factory to stock up...)
Imagine the apocalypse fairy has come to you and said you're allowed to visit one more shop before you have to fend for yourself. Where would you go?
Tempting as it is to say somewhere like Costco to stockpile; I think I would actually go for my local garden centre. That way I could stock up on seeds, mini greenhouses, compost, tools, water butts etc. (Plus I could always raid the vending machine as well!
) would probably also grab fence panels/timber to secure my house a bit better.
Actually, starting this thread has made me think I need to investigate getting an allotment...