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BLOOD: Today’s opportunity to donate blood is at the Church of Jesus Christ LDS in Walworth. Free, see site for terms and conditions
COMEDY: It isn’t often you get to make requests at a comedy gig, but if you book to see excellent satirist Andy Zaltzman at the Soho Theatre you can email in with a subject for him to cover. £10-£15, prebook, until 21 September
MORE COMEDY: Bourgeois & Maurice have the power to inspire slavering love and devotion: indeed, one of Londonist’s own number is under their filthy power. They’re doing their most recent Edinburgh show, Sugartits, at the Soho Theatre for the next two weeks. It’s cabaret, but not as you know it. £10-£20, prebook, until 21 September
WALKS: Clerkenwell and Islington Guides Association are still offering free walks during selected weekdays. Pop along and get some culture in your lunchtime. Free, prebook, until end of September
LONDON SUBURBS: Dr Nick Barratt explains how greater London areas developed over hundreds of years with the suburbs playing a crucial role in the creation of the capital as a whole, at Guildhall Library. £5.95, prebook, 6pm
MAN BOOKER: Eleanor Catton’s The Luminaries is longlisted for the Man Booker prize. She’s talking about it at the Southbank Centre. £8, prebook, 7pm
ARCHIVES: A panel of artists and scientists discuss archiving, taxonomy and classification, at GV Art on Chiltern Street. Free, prebook, 7pm
DEBATE: Join The Rational Parliament session at Conway Hall for a debate about genetically modified food. Free, prebook, 7pm
LIARS: Mix business and pleasure at Liars’ League at the Phoenix, where actors read stories specially written for the event. £5, just turn up, 7.30pm
GRAPHIC NOVEL: Toby Litt, SJ Fowler, Hannah Berry, Tom Humberstone and William Goldsmith are all creating a Special Relationship at The Book Club. £5.50, prebook, 7.30pm
CONTEMPORARY CLASSICAL: The Night Shift is the Orchestra of the Age of Enlightenment’s laid-back, late night, contemporary classical music programme, and tonight it is at The George in Stepney. £12/£10, prebook for cheaper tickets, form 7.30pm
EARTH ON FIRE: Head to Bloomsbury Theatre for a screening and panel discussion of the 1960s classic sci-fi disaster movie The Day the Earth Caught Fire. Expert panellists from Royal Greenwich Observatory, Imperial College London and Open University will lead the discussion. £7.50, prebook, 7.45pm
Good Cause of the Day
On 22 September, Camden Arts Centre is welcoming in visitors for its Spectacular September Fundraiser. This special afternoon offers drop-in workshops in the centre's studio spaces, including paint and pasting with Matthew Krishnau, small building modelling with Evy Jokhova, book making with Laura Carlin and Luke Best, and an animation workshop with Jason Barker. Donations are suggested for each activity and money raised will go towards keeping Camden Arts Centre free and open for all. Sunday 22 September 2-4.30pm
London Connection Puzzle
This week's puzzle starts today and is set by last week's winner, John Birch. We're tweaking the rules a little this week. To save everyone sending in random guesses based on just one clue-word, you have to wait until the second clue tomorrow before emailing in. But, to get the grey matter thinking ahead of time, here's the first clue-word for the week: PRINCE GEORGE. More tomorrow.
From Londonist’s Archive
On this very day two years ago, we brought you a groundbreaking video. It was full of emotion, exploration and revelation. It featured bewildered felines and bargain furniture. That's right, it is the 100 Cats Released Into Ikea Store video. Gets us every time.
London Weather by Inclement Attlee
I truly despair at traditional weather forecasting. Yesterday, we were told to expect a grey day with only occasional light rain in the evening. What did we get? Enough downfall to fill 12 Olympic tennis courts the size of Wales and back. Today, the BBC suggests a breezy day with sunny intervals and no rain. Translation? Dense fog with ball lightning and tartan skies.