I guess much depends on ‘how quick is quick’, but we’ll assume it’s not half an hour and at least a few days or a couple of weeks.
Clear out the Clutter.
Have a Boot Fair or advertise on local Free Ads, or better still, in a Shop Window / Supermarket Board.
Have a Yard / Garage [...]

I’m lucky, I have no mortgage, no savings, no salaried income, no Credit Cards, but I have a good life!
It would seem that the only way I could be affected would be with rising prices, but being slightly better off than I have been for a few years, I know how to go back down [...]

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