Freecycle and similar websites

IN today came 3 sourdough loaves and a hunk of focaccia.
Collected them before I went to Argos to buy!! a new printer as the old one wouldn't talk to my Win.11 laptop and there were no drivers to update it.
I'm standing outside Sainsburys/Argos rummaging in my pockets and bag for a £1 coin. It was so busy there that there were only 3 trolleys left and I was anxious to find a coin before they disappeared. A man came along and took a trolley, saying that he only had one coin, sorry. Down to 2 trolleys now and I'm weighing up whether to go back to the car (in the rain) and look for some money or go into the shop and try to swap some loose change for a £1. Then along comes another man with a trolley and saved the day. He gave me his trolley and said that it had been given to him with a coin in and wished me a Merry Christmas! There was nobody around the trolley bay when I unloaded the printer so I couldn't pass it on - and I had no intention of going back to the store in the rain to park it there.............so I'm £1 better off.