The world seems to get more mind-boggling by the minute.

And as we’re bombarded with info on Bitcoin, AI and complex computing algorithms, it’s easy to forget that it’s often the simplest ideas, developed to make life more stress-free, that stand the test of time.

But a lot of smart thinking powers the popular, practical and straightforward products we use in homes and offices.

So it’s worth digging a little deeper into this sophisticated simplicity by looking at three businesses that excel with everyday products.

1. Numatic International Ltd

Vacuum cleaner brand Numatic International Ltd might not ring any immediate bells — but there’s a good chance you’ll recognise Henry the Hoover.…