This week's London on the Cheap is brought to you in partnership with cheapflights.co.uk
The launch of Giving What We Can will feature three people talking about philanthropy and the most effective ways to make a difference, with free wine and nibbles thrown in at Imperial College from 6.30pm (free).
Tuesday: Never heard of Porphyry? Find out about the 'compassionate philosopher' at the Prometheus Trust lecture at New Acropolis, Compton Terrace N1 from 7.30pm (£5/3).
Wednesday: Find out how electricity emerged as a tool for making sense of our bodies and the world around us at the free Poynter lecture: Shocking Bodies at Wellcome Collection from 6-7pm (free).
Thursday:The Lambeth Schools Music Festival begins with lunch and tea-time concerts in the Clore Ballroom at the Royal Festival Hall until 28 March (free).
Swap unwanted clothes for things you do want to wear and pick up sewing tips at Hammerswish at the Durrel Arms, Fulham Road from 6.30-9pm (free entry but please RSVP).
Friday: There's bargain comedy at the Canal Cafe Theatre as telly funny guy Paul Chowdry tries out new autobiographical material from 7.30pm (£5).
Saturday: Explore the wildlife garden, go pond dipping or learn and make froggy things at the Roots and Shoots Spring Open Day in Kennington between 11am-4pm (free entry).
15-25 year olds can get into the work of Yayoi Kusama with an immersive afternoon of drop-in art, fashion and sound workshops culminating in a silent disco for Infinite Kusama at Tate Modern from 1-6pm (free).
Take a Dickens and Southwark walk with Coin Street from 11am (free but please book).
Grab a couple of friends to join a 3 hour treasure hunt with the Airbnb gang from midday, meeting at the Royal Albert Hall (free but sign up).
The Rich Mix Snapshost Festival focuses on Banglatown with the usual array of family friendly activities plus photos and other material from the Tower Hamlets Local History Library from 10.30am till late (free).
Sunday: Go to the Craft Fair upstairs at Balham Bowls Club from midday till 6pm (free entry).
Try drumming at Djam, Finsbury Park Art Club.
Tender Kiss photo by Prad Patel via the Londonist Flickrpool.
This week's London on the Cheap is brought to you in partnership with cheapflights.co.uk
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