Clothes labels are full of strict instructions on how to wash our laundry but many have probably never looked at them closely ...

Up to five key symbols are printed ... with two diagonal lines in the top left corner means to dry in the shade. Hang dry is shown by a square with a semi-circle at the top, like a washing line ...

But many people could not tell you what the triangle or circle symbols mean ... while a square with two diagonal lines in the top left corner means to dry in the shade. Hang dry is shown by ...