Mrs Hinch inspired Facebook page Mrs Hinch Made Me Do It to share her life-hack with others. She wrote: “Did anyone else know this, I have only found out that that’s where it goes when you’re not using it."Others said they had noticed the same compartment but admitted they had no idea what it did.One said: "What does it do?"Another wrote: "Checking our washing machine."And a third added: "I use mine for my powder..