The notion that inventors are anorak-wearing crackpots with glasses held together with Sellotape is beguiling but wrong.

That was the Alka-Seltzer moment, the moment when the tablet hits the water and begins to fizz.

The notion that inventors are anorak-wearing crackpots with glasses held together with Sellotape is beguiling but wrong.

As long as you've got slightly more perception than the average wrapped loaf, you could invent something.

The key to success is to risk thinking unconventional thoughts. Convention is the enemy of progress.

But having had your bright, fresh, original idea, the really hard part is turning it into a successful product. That's what takes all the sweat.

A good idea turns every cog in your mind, making you scared of bed in case the whole machine grinds to a halt.