Coping With Rising Prices

So what can we produce here at HG Towers, I wonder, as prices rise and rise? 
wheat: yes, though it hasn't been grown for years and years the wheatfields are still there, if some of them are under trees, but those can be cut for fuel;
meat: yes, currently venison, boar, and hare but could be expanded to chicken, guinea fowl, duck, and rabbit;
corn: yes, did that quite recently as it attracted a subsidy;
tobacco: yes, but truly awful cigarillos come from it;
olive oil:yes;
wine: not at the moment but could be re-established although really not worth it when it can be bought at 1 euro an excellent Chianti litre;
veg. and salads: yes, in quite scary quantities;
fruit: some now, others the trees all had to be replanted so we'll have to survive on figs, apricots, cherries, and quince for a bit; 
from the wild there are mushrooms and berries (how Levi-Strauss).

It sounds quite good but I'd have to set up a food processing plant to cope with it all and it's bad enough already (the word 'tomato' makes me reach for my gun) - self-sufficiency is really about processing and storing your own just as much as growing it.

As for, coffee, tea, sugar, orange juice and hard alcohol (though I'm told there's a primitive still somewhere in the cantinas - probably buried under an avalanche of books) it'll have to be the supermarket.  And I'm not boiling the washing with ash and soap root either, never mind cleaning my teeth with sage leaves dipped in salt.  So I may as well get all the stuff above while I'm doing the Lidl run, after all, I wouldn't like to waste petrol.  And I could pop into Prada en route,   and get a few things before cotton prices get out of hand.