All over the country, people are shopping for those who can't get out or are ill, or who are vulnerable or self-isolating. But how can people who need groceries pay safely for the shopping?
Cash isn't a good idea - for one thing, it may be it can transmit the virus. A much better alternative is the "volunteer cards" now offered by several supermarkets. These are vouchers you buy online - the "card" is emailed to the volunteer, and then they use it to pay for the shopping.
If the person who needs the shopping doesn't use the internet, there also now exist schemes which allow them to ask their bank/building society to send a one-time barcode to the volunteer (it can be text, email or post). The volunteer takes this into the bank/building society, and they can draw out the amount of cash designated to that barcode.
For more details, see here.