Posture tips.

I'm a terrible sloucher. I've got some good tips recently though.

Carry shopping bags with bent arms. When you are lazy and let your arms dangle and shoulders droop, your back gets used wrong. It does make a difference to posture, I've tried it. But it looks a bit dorky.

The other trick I learned, from my bible group leader, is to stand with your heels sort of tucked together, one a bit in front of the other and toes pointing apart (in 3rd position in ballet lingo), because that forces good posture as well. When you square your feet apart you're probably going to slouch. I'm practicing at traffic lights.