LONDON PHOTOGRAPHY: CA Halpin's photographs of the East End go on show at A Brooks Art, Hoxton Square, from today. Runs until 1 December. Free, just turn up
GIVE BLOOD: Today's centres are on Kingsland Road, Southwark Street and Bishopsgate. Do pop along and help to save a life.
HORRORGAMI: Marc Hagan-Guirey's haunted house paper models have drawn the attention of the BBC, Time Out and Wired. Join the crowds for this horrorgami exhibition at Gallery One And A Half from today until 14 November. It's the second best use of manipulated paper we've ever seen — the first being Kemp Folds. Free, just turn up, 10am-5pm
AFFORDABLE ART FAIR: The annual £40-£4,000 Affordable Art Fair moves up to Hampstead Heath. Over 100 galleries are represented, and the fair is marketed as ideal for the first-time art buyer. £10, 11am-9.30pm
GEEK LATES: A new event, taking place in Central Foundation School just off of Old Street, offers a pot pourri of geeky entertainment. Listed diversions at Geek Lates include a sketch notes workshop from Eva Lotta Lamm, short story writing from James Wallis, Domestic Science with Helen Arney, and Arduino workshops with Paul King. £20, 6-10pm
CHURCHILL: Three experts on Winston Churchill, including his grandson Nicholas Soames MP, discuss the big man at Bloomsbury Publishing in Bedford Square. £8, prebook, 6.30pm
ART: Ania Bas introduces Richmond Borough's art collection, which includes local landscapes, portraits and objects dating from the early 18th century to the present day. The talk takes place at Orleans House Gallery in Twickenham. Free, 6.30pm
WAR: A somewhat sombre event at the Imperial War Museum examines how the ways we mourn and commemorate our war dead have changed since the First World War. Free, prebook, 7pm
POP: "Earnest indie frontman" Crispin Hunt of The Longpigs is at the Idler Academy for an idle chat about pop music. £15 including wine, 7pm
BATTLE OF THE POETS: An Evening with the Gruntlers sets English and Welsh poets against each other at the Poetry Cafe. Free, 7.30pm
DAY OF THE DEAD: Celebrate the Mexican festival at Rich Mix, with an evening of performance storytelling. £8, prebook or turn up, 7.30pm
GOOD-CAUSE COMEDY: The Richard-Herring-headlined Joking for Justice night at Bloomsbury Theatre is raising money for The World Development Movement. It'll also be very funny. £19, 7.30pm
Random London Fact Of The Day
Did you know that there's a small garden up in Belsize Park that contains part of old Waterloo Bridge, as well as a fragment of the old House of Commons (destroyed in the Blitz)? Find out more here.
Today's BBC Weather report is full of Women Seeking Women, or at least that's what we descry from the repeated use of 'WSW' in the section about the wind. Same-sex relationships aside, it'll be a changeable day, with sunny breaks, rainy interludes and a big grump of cloud.
Secretly Hidden False Rumour Of The Day
In the 1911 census, Belsize Park was recorded as Bell-end Park. It's thought that local residents totally pissed off the census officer by repeatedly calling him "Statto" in a pejorative tone.