What a busy week! What with the Bank holiday, Cans Festival, Pangea Day, May ’68 celebrations and more, free cultural activities abound across London. So get out of bed, you lazy hungover git, and go sample what’s on in our summery city. Monday: In case you missed it over the weekend, catch the last day of the Cans Festival, a graffiti art exhibition headlined by none other than London’s lovable guerilla stencil artist Banksy.......