I’m not sure why I was tempted by this particular challenge:
I prefer my challenges these days to be water based! Maybe nostalgic memories of mountaineering in my youth played a part!  At 74, with dodgy knees and less than perfect balance, I prefer not to think too much about stepping backwards off the stadium roof!  However, I have been so impressed by the workof the volunteers collecting donations outside my local Sainsbury’s in Balham, so reliably and for so many months, just donating food once a week doesn’t seem enough.