Inspired by the opening of the East London Line, this week's cheap is all about the east side.
Thursday: It's First Thursday for the arty types of east London and to escape election fever we suggest getting thee to the Nunnery in Bow for a few hours of musical performance in and around the abstract paintings of Incidentally. 7pm, first performance 7.15pm, free.
Friday: East is East Late at Tate Britain this evening, 6-10pm. Expect some Asian dubstep, the Whitechapel Poet, social activism, Resonance FM, This is not a Gateway, films on loop and the small matter of the entire collection, and all completely free.
Saturday: Haggerston Park hosts Free Compost Day courtesy of Hackney Council between 11am-3pm. Meet Doctor Compost, see a working wormery, swap seeds and most importantly, take home free compost (bring a container - what's the most unusual thing you'd like to see full of compost? They will have sacks too.)
London Metropolitan Archives invite people with memories, photographs and stories of WWII in the East End to contribute to the archives this afternoon for My East End War between 2.30-4.30pm.
Sunday: Wake up early and take a dawn chorus walk around Greenwich Peninsula Ecology Park, 6.30-8.30am.
Vortex Outdoors brings jazz, reggae, soul, funk and hip-hop music out into Gillett Square, Dalston, free festival, 1-7pm with an after party in the Vortex Jazz Club.
Monday: Whatever happens in the election, join hopeful Hackney people at The Pangea Project Be The Change Symposium and explore "a new global vision built on Environmental Sustainability, Spiritual Fulfillment and Social Justice". Free, 6-9.30pm.
Tuesday: Learn about Eastenders, the Early Years (1550-1700) at the Museum of London's free public lecture, 6.30pm.
Or visit gallery 10 Gales, Gales Gardens (under the arches), Bethnal Green for Acoustic Night around the current exhibition of portraits of culture shapers, John Lee Bird's Before Encore project. Pay what you can, 7-11pm.
Wednesday: Celebrate the 350th anniversary of the birth of Daniel Defoe at the Barbican Library's free event, A True Born Englishman, and hear readings of his poetry and prose about London and poetry by others about our city, read by the Poetry Ambassadors of Keats House. Refreshments from 6pm, readings at 6.30pm. Free but book your tickets in advance.
Help your fellow readers stay thrifty - let us know about cheap and free events happening in your hood. Email firstname.lastname@example.org, leave a comment or tweet us @londonist.