I braved Sainsburys this morning, and it was absolutely fine... Busyish, with people standing in stupid places having chats with their shopping companions
, but no queue outside or at the checkouts and everything I needed on the shelves (with some things handily on aisle ends, so I didn't have to go down the aisles).
Including lettuce. I was terrified at 9am when I was still not dressed that I'd left it too late, but I wanted to get there after 10 so I could buy booze without hanging around the cordoned off bits like a desperate woman. Though the taxi driver said it was absolutely heaving at about 6.30- 7am though (they opened at 6) so maybe for once my lax ways were actually of benefit.
There were surprisingly many primary or early secondary age pupils in there with parents/ grandparents. So it's obviously too dangerous for them to be in school (which break up tomorrow here. And they would obviously be local children, cos T3 travel ban) but its absolutely fine for them to be in a supermarket. 
Interestingly, they've closed off the cafe, but looking through the windows I could see they are using it as a giant overflow stockroom, with huge pallet loads of toilet paper, dry pasta, tins of stuff and so on. Which is promising for the next few weeks I suppose.
Bizarrely, it's actually made me feel a little bit festive. Maybe that's all I needed... A trip to a supermarket 4 days before christmas in the middle of a GLOBAL PANDEMIC.