Pfft! Every item you listed is a potential weapon...

There's no way I'd just a bottle of wine or a box of crunchy nut cornflakes as a weapon. What a waste that would be.

Get him drunk, throw corn flake dust in his eyes FTW.

So that's what the crumbs are for at the bottom of the packet.

I would not eat a shop bought plastic wrapped pizza.

Such things are a convenience, but I much prefer making the things myself, far more satisfying and tasty. 

I'm so distracted trying to parse 1,024 and 64 that I can't even play. So I'll go with Manny's answer of strong drink.  

It's rarely a wrong answer... Sx

How many people do you think actually totalled up any numbers?

Peter, you know the sort of people here.

Answer's all of us of course. :C

Wrong.  (wrong)

I bet you're thinking about it now though. 

No, I'm thinking why did PB start this thread if he is not, in fact, planning to spend 64 days on a (not Mount) Desert Island with total budget of 1024 squids?
 (pyfitg)

Oh, and will he spend his nights on a luxury yacht anchored offshore?

(no, no he won't, for he is not going to a desert island for even one day).
 

Well, who /would/ want to leave So. Croydon?

It's like a desert island?

Well, funny you should say that... :S

Whilst it was a hypothetical situation, it turns out fate has decided my near future will indeed involve packing light and surviving in a tent surrounded by sand and trees, for more than one day.

Ok, so it's not on an island, and apparently there's a nearby village supermarket which may or not make food simple, but I still have to figure out a sleeping bag and whatever the fuck else I'm going to need, whilst hoping the "tent" actually turns out to be sticks or bricks and containing appliances...

Flooded out?

You're off on holiday, possibly camping, but hoping for a hotel?