Probably the best £7.95 I’ve spent this summer has been on a hand squidger* from my local Decathlon.
It’s a spring-loaded grip thing that you squeeze with one hand, to strengthen your grip and exercise fingers. I’ve got it set on 30kg and do 3 sets of 11 with each hand on the way to work. After four months of injury-enforced lack of exercise – during which I softened into a bulging fleshy sack of butter, a shadow of my former self – this one little exercise alone has brought a perceptible increase in hand strength and a noticeable definition to the arms, in just a month of doing a daily five minutes. Awesome.
* Yeah, I know there’s another word for it. But they should call it a hand squidger.