Sainsbury’s has banned couples from shopping together as it brings new rules and opening times into force.
The latest changes limit people to sending just one adult per household to the shop - with others asked to stay outside - while buying limits are being relaxed.
Chief executive Mike Coupe said: "From today, we are asking everyone to please only send one adult per household to our shops. This helps us keep people a safe distance apart and also helps to reduce queues to get into stores.
"Our store teams will be asking groups with more than one adult to choose one adult to shop and will ask other adults to wait. Children are of course welcome if they are not able to stay at home."

But there was some good news for families too.
"As stock continues to build, we have been reviewing whether we still need to limit the number of items people buy. I am pleased to tell you that we will start to remove limits from Sunday," Coupe said.
"Limits will remain in place on the most popular items which include UHT milk, pasta and tinned tomatoes.
"We have removed limits from Easter eggs immediately as we know families often want to buy more than three and we have plenty of these in all stores and online."
Other changes include a queueing systems outside of stores to limit numbers, markings on the floor plus screens at our checkouts in every supermarket and convenience store.
Counters and cafés have been closed to free up staff and space for essentials.
Key change at Sainsbury's:
- Giving existing online customers who are vulnerable priority access to online home delivery
- 600,000 slots across home delivery and Click & Collect (up form 370,000)
- Every Monday, Wednesday and Friday, supermarkets will dedicate 08.00 to 09.00 to serving elderly customers, disabled customers and their carers
- NHS and social care workers can shop for half an hour before supermarkets open from Monday to Saturday. Anyone with NHS ID will be able to shop from 07.30 to 08.00 on these days
- Only one adult per household per shop