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GIVE BLOOD: Today you can donate blood at Islington Town Hall and Brewers Hall in the City of London. Free, just turn up, see site for times and conditions
FREE WALKS: To celebrate English Tourism Week, there are daily free walks on varying topics all week, courtesy of the fine people at City Guides. Scroll down to the bottom of this website for details of what, where and when.
STUFF IN YOUR BODY: A new exhibition looking at what constitutes a foreign body, with examples from UCL's collections, opens in the university's quad from today. Free, just turn up, until 14 July 2013
RIVER CLEAN-UP: You can do your bit today by joining a team of volunteers to help tackle the litter that accumulates on the North Woolwich foreshore. All equipment is provided. Free, just turn up, 10.30am
CANNABIS: Gresham College hosts Cannabis Britannica: The Rise and Demise of a Victorian Wonder-Drug, a lecture discussing the sudden interest and subsequent anxieties behind the drug during the Victorian era. Free, just turn up, 1pm
BOOK READING: Javier Marias talks about his newest book The Infatuations at Waterstones Piccadilly. £5/£3, prebook, 6.30pm
INTERNET: Evgeny Morozov focuses on the internet at this talk at The Royal Institution. We are a society in the digital age — where will the 21st century take us, and do we have a choice? £10/£7, prebook, 7pm
POETRY: Hear poets Alice Oswald and Robin Robertson at Somerset House with the Royal Society of Literature. Rumour has it that TS Eliot's fountain pen will be wielded for the first time since his death. £8/£5, prebook, 7pm
FREE FILM: As part of the week-long Camberwell Free Film Festival, The Crooked Well is hosting the film Me And You And Everyone We Know. Get there early to nab a seat and your free hotdog and popcorn. Free, just turn up, 7.30pm
THEATRE: The deliciously demented Spymonkey returns to the West End. Directed by Cal McCrystal, comedy director for the National Theatre’s smash hit ‘One Man Two Guvnors’, it looks hilarious. £18-£22, prebook, 7.30pm
TALK: Terry Dobney talks as part of The Moot With No Name series this evening on the growing movement to give Pagan remains discovered by archaeologists the same respect as given to their Christian equivalents. £3/£2, just turn up, 7.30pm
COMEDY: Mark Thomas and David Baddiel both play opening shows at Soho Theatre this evening. It sounds like both ask for audience involvement too, so make sure you avoid the front row if you don't want to be picked on. £10, prebook, 7.45pm (Mark Thomas) or £12, prebook, 9.30pm (David Baddiel)
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Random London Fact of the Day
Today's fact comes from reader John Harker, who tells us that the flats where the fictional detective Hercule Poirot lives are known as Whitehaven Mansions but are, in reality, Florin Court, an art deco block on the very edge of the City of London. The flats come with their own private "Square" (Charterhouse Square) which is reputedly a plague pit. During a recent filming of Poirot, Tony and his wife managed to get a snap of themselves outside "Whitehaven Mansions".
The ditzy old wind is going to blow from 11 different compass points today, negotiating more changes of direction than David Cameron on a water slide. With swings from 1-7ºC and a right old merry-go-round of clear skies and rain, this is the most muddled weather report since the 2007 Schafernaker Giggle Incident.