My dad often says my mum won’t survive when he’s gone as she won’t be able to open any jars for food. Maybe this’ll help. Warming up jar lids has saved me on multiple occasions.

Fourth Try: Put folded dish cloth on counter and whack the edge of the lid against it. Boom. (courtesy @MrRobBell)

Remove troublesome lids

The best stuff I’ve learned from the chapter ‘Pursuing the perfect stride’ in Brain Training for Runners by Matt Fitzgerald and by reading Born to Run.

Run better

This handy tip from @inventor_tom. People who halt progress at the barriers are not easily tolerated here it seems.

Scan your Oyster card while walking to avoid angry Londoners