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BLOOD: Today’s opportunities to donate blood are at Brewers Hall in the City, The Hop Exchange in Southwark Street and Brookside Methodist Church in East Barnet. Free, see site for terms and conditions
ART: Town and Country is the new David Heffer exhibition at Flowers Gallery in Dalston. The painter, known for his architecturally-inspired works, rediscovers himself as a landscape painter. Free, until 29 March
WATERY WALK: Learn about the secrets of Hyde Park's waterways in this Royal Parks Wintry Water guided walk. £5, prebook, 12pm
SCULPTURE: Artist Sara Barker discusses her sculptural work at the Institute of Contemporary Arts. £5, prebook, 1pm
ROMAN TOURS: Join Museum of London for a tour of the remains of the western gate of London’s Roman military fort. £2.50, prebook, 2pm/3pm
POPCORN COMEDY: Celebrate all things Canadian and funny at Hackney Picturehouse's Popcorn Episode 4: Canada, with acts including Mae Martine and Tony Law. £10, prebook, 7pm
TEA BOX JAZZ: The Tea Box in Richmond has Friday night jazz tonight, with the sounds of singer Alex MacLaine and guitarist Nora Bite to enjoy while you tuck into the array of teas and tea-complementing snacks. £6/£5, prebook, 7.30pm
THEATRE IN A LIBRARY: Marelle is the title of the contemporary theatre short-play on at Canada Water Culture Space. A journey into the city’s many different life stories, donations welcome. Free, prebook, 7.30pm
TOP SECRET: Join London Dreamtime and Nigel of Bermondsey in a secret location near Deptford Bridge for some nighttime storytelling and music. Meeting place is Greenwich DLR, the venue is to be discovered. £3, prebook by email, 8pm
ICE DISCO: Every Friday evening, Streatham Leisure Centre hosts Deep Freeze Disco. £6.90, prebook, 7.15pm. Alternatively, join in the London Friday Night Skate, open to roller skaters and bladers, weather permitting and starting at Wellington Arch. Free, just turn up, 8pm
MUSIC: The International Rameau Ensemble hosts one in a series of concerts celebrating the life of French Baroque composer Jean-Philippe Rameau at St George's Hanover Square. £15, prebook,8pm
Bermondsey start-up Pact Coffee is on a mission to get London drinking better, fresher coffee. Get your first 250g bag of hand-roasted coffee delivered to your home or office for only £1 with free P&P. Just use the code londonist14 at checkout. For more info and T&Cs click here.
Good Causes of the Day
1. Help a good cause without spending a penny today. East End pub The George Tavern has been under threat from property developers for several years, with celebrities including Kate Moss, Sir Ian McKellen and (formerly) Amy Winehouse joining the campaign to keep it open. Plans have been submitted to build housing on the adjoining plot, which would result in a noise abatement order for the venue, brining to an end its much-loved gigs and, as a result, its business. You can sign the Music Heritage UK petition and give your support here.
2. clueQuest, the live escape game organisation has partnered with Over the Wall charity in order to fundraise money for summer camp experiences to benefit terminally ill children. They've organised an online auction and the winning bid will get the chance to be the first to escape clueQuest's new game, Operation BlackSheep.
London Connection Puzzle
Your clues so far: STREATHAM, LADBROKE GROVE and ALEXANDRA PALACE. Today's addition, and final clue, is NORTHOLT PARK. Spotted the connection? No need to email in, as we have a winner. The solution will be revealed on Monday.
From the Archive
A year ago we were admiring this 360 degree panorama of London from the top of the BT Tower, constructed from more than 48,000 individual frames. Use with caution — on rediscovering our fascination with it, we've made ourselves a bit dizzy.
It's the final day of Rude and Lewd week on Londoddities. Our last naughty instalment comes from the ever intriguing shelves of the Wellcome Collection. What’s the strangest place you’ve ever made love? This adaptable couple have selected a series of hinged porcelain fruit for their carnal encounters. No one’s quite sure exactly when or where these unusual specimens come from. All we know is that we’ll be subjecting our puritan great aunt’s Fabergé egg collection to greater scrutiny next time we visit.