Sorry if this has already been posted; I did look but my lenses are playing up ...
I really enjoyed reading this Independent article in the sunshine today!
Final summary:
Gender pay gap is still 21%.
Ms Smiths' proposal:
either
force companies in the public and private sector to be completely transparent about how much they pay all their employees
or
have a "woman discount" on fixed costs such as council tax, utility bills, national insurance and so on. Twenty per cent is a nice round figure
Certainly gave me a "Now why didn't I think of that?!" moment 
Am just off to post supportive comments on her article.