Skint? On a budget? Looking for cheap things to do in London? We hear you, which is why we've put together this list of things happening in London this week that cost £5 or less.
All week
LIFE ON BOATS: Discover the lives of the 1,000 people who live aboard boats between Teddington Lock and the Thames Barrier through intimate photos at Watermans. The exhibition is part of the month-long Totally Thames festival. Free, just turn up, all day from 10am (until 30 September)
Monday 5 September
POWER OF BIOLOGY: Head to Makers Academy for a free talk by bioeconomy specialist Dr Yvonne Armitage, and discover how we can optimise the power of biology. Free, book in advance, 6.30pm
Tuesday 6 September
ART WORKSHOP: There's a drop-in drawing workshop at Charing Cross Hospital, as well as dance performances inspired by the Henry Moore sculpture outside, poetry readings and Japanese theatre performances. Free, book in advance, noon
OPERA: Soprano Ilona Domnich pays tribute to her favourite operatic heroines in a concert followed by a Q&A conducted by Ashutosh Khandekar. Free, book in advance, 6.15pm
CHRISTIE'S LATES: View a 1.5 metre-high mechanical corkscrew and listen to the director general of the Royal Photographic Society speak about the history of Leica cameras at Christie's invention and curiosity-themed Late. Free, just turn up, 6pm
NEW MUSIC GIG: Puzzle and Fraser Churchill are among the up-and-coming acts playing at The Social tonight. Free, just turn up, 7pm
Wednesday 7 September
BREXIT AND ECOLOGY: The Director of Science Policy at Royal Society of Biology is chairing a discussion at ZSL about the role the UK plays in climate change. Speakers include the former Chief Scientific Adviser to the UK government. £5, book in advance, 6pm
UNUSUAL RIVER WALK: Walk along the Rotherhithe riverbanks and discover the history of forgotten London — see a pirate's lair, where the Vikings landed, and where Gulliver's Travels began. Free, just turn up, 6.15pm
PUB SCIENCE: Discuss everything from sharks to maths to geographic profiling with Dr Steven Le Comer at The Old King's Head, Borough. Free (donations welcome), just turn up, 7pm
JAPANESE SHORT FILMS: Cafe 1001 in Brick Lane is showing a selection of shorts from London and TOKYO in collaboration with Reel Japan Film Festival. £3, book in advance 7pm (film starts at 8pm)
Thursday 8 September
LUNCH ART CLASS: Spend your lunch hour drawing London's landmarks with charcoal, inspired by historic maps and modern photos. Free, book in advance, 1pm
FREE COMEDY: Head to Hammersmith for a night of laughs from a host, two professional comedians and 10 up-and-coming comedians. Free, just turn up, 7.30pm
Friday 9 September
ART EXHIBITION: The Mothering Blackness explores the role of the black female body in both life and art. Challenge pre-conceived ideas and chat to other artists about both the celebration and conflict of gender, sex and race. £3, book in advance, 6.30pm
Saturday 10 September
MUSHROOM GROWING: Learn how to grow your own gourmet and medicinal mushrooms at The Mill in Walthamstow. Free, book in advance, 2pm
AFRIKAANS FILM FESTIVAL: There are talks, documentaries and live performances at The CLF Art Cafe in Peckham. There's also an Afrikan market selling handmade products. Free (donations welcome), just turn up, all day from noon
Sunday 11 September
LONDON PHOTOGRAPH FAIR: Around 50 dealers from around the world are displaying and selling everything from vintage fine art and 19th century curiosities to collectible photobooks and press photos at London Photograph Fair in Bloomsbury. £5, book in advance, all day from 11am
ROOFTOP PARTY: Dance away the end of summer with afrobeats and soca on Dalston Roof Park. While you sip on a cocktail, listen to live poetry and watch dancing performances. £3 (+booking fee)/£5, book in advance/just turn up, from 5pm