It may be over a month away but if you don’t get your tickets to London’s Open House prontito, you might be stuck with your nose pressed up a very fancy window pane. Yes, the one weekend where ordinary folks are allowed to go into premises usually out of bounds to them comes around on 17th and 18th September, but the website where you can get your stickies on tickets for all 700 venues, including the BT Tower – or the Post Office Tower as we still call it around these parts – goes live on Monday. Most venues are come-as-you-are/pitch-up-when-you’re-ready but for the stars of the show you will need to bag a free ticket. There is also a free Open House app available from Monday, which will help you organise your Open House activities. Get thee to www.londonopenhouse.org for all kinds of everything.