I am fit, healthy, low risk.
I am incredibly fortunate that everyone else in my family is as well.
I will not use a slot, I cant guarantee it will go to someone deserving, regardless of what supermarkets put in place someone will find a way to abuse the system.
If however enough people genuinely gave up their slots there wouldn't be this mad dash, this grabby entitled attitude, people could take care and precautions to shop safely, knowing that if they showed symptoms, at that point they could get a slot because people weren't being arseholes.
For those worried about shopping.
My experience in Tesco was fantastic. We queued outside, 2 metre markers were set out but most people left more room than that.
There was disinfectant spray in multiple queue points to clean trolleys
It was a one out, one in system.
Once inside (and needed to queue for about 20 minutes) the aisles were really clear, if I was down an aisle i'd notice people stop, wait till I moved before walking down.
I think only once did someone walk closely to me.
At checkout, only one person was there at a time - You were called, pointed to the checkout and loaded. Then walked past the cashier, the pay machines were at the very end, paid and left.
The whole time I wore gloves. I removed them as soon as I unloaded the car and put my trolley back.
I wiped the bags down with dettol wipes. I then got home to be greeted by husband and kids who all wiped the contents down. I left my shoes and outer clothes on the porch.
It is entirely possible to do a shop, take precautions and leave the online deliveries to those who actually need them.
Or we could all act like @BananaChocolateLump tell everyone to fuck off and hope and prey we never need the help and support of other people.... I know which type of world i'd rather live in.