^^^ My last supermarket shopping trip was to Morrison's just over 6 weeks ago, BD. I top up a few essentials, such as milk, occasionally in a local corner shop, usually just after they open at 5am, so that I don't encounter many crowds.
I reckon that I've still got enough cans and frozen stuff to see me through another few weeks before I'll need to go to a major supermarket again (and then I'll try to go when it's really quiet - there were only about half a dozen other customers in Morrison's when I last shopped there).
That doesn't mean that I'm not going out at all though. I gave in and joined the crowds on Clacton seafront on Bank Holiday Monday ;-)