London this weekend - Where should I visit?

Hi all.
I'm visiting London this weekend and need some suggestions of design museums/exhibitions I should see.
Hopefully going to make it to the last day of Designs Of The Year Awards www.designsoftheyear.com/ , possibly the Zero Per Zero exhibition at Kemstry Gallery kemistrygallery.co.uk/shows/20…, Tate modern, hmmmmm... that's all so far.
Any suggestions would be greatly appreciated