It needs to be one-off quite generous helicopter money to a very large group e.g. all child benefit recipients and everyone on UB and Income Support etc. Some arrangement would also be needed for the self-employed.
Cheap to administer, would pay the rent/mortgage for at least a fortnight while the recipient was not earning, and if anyone gets a windfall they don’t need they will (usually) spend it thus boosting the economy.
Idiots will continue to idiot, but this would really help those people who can’t afford not to work to isolate when they should.
Yes it will be expensive, but some kind of QE needs to happen anyway, and better the money goes into people’s pockets than the offshore accounts of Johnson’s mates.
And I’ll happily pay a bit extra income tax in the future if necessary if it helps get us out of this mess, and so should any other higher rate taxpayer.