Pterosaurs on the Southbank, part of The Festival of Science and Arts by McTumshie
Subject to spending cuts? Never mind.
Tonight: The graduating class of Circus Space 2010 do their dress rehearsal of Step It Out at Theatre Square, 10pm whilst the LFA2010 take people on a tour of hidden bits of the National Theatre. Sign up at the Information Desk. Part of Watch This Space.
Saturday: It's Pride London parade day leaving Baker Street at 1pm, converging on Trafalgar Square and spreading out all over Soho till late.
Dance Nations Dalston builds on last year's afternoon of boogie with the Barbican team bringing hip hop, Bollywood, same sex ballroom and hula hooping plus the marching moves of the Aphsalt Orchestra and jazz band Polar Bear and more. Midday till 6pm (Sat & Sun) Gillett Square, N16.
Blythe Hill Festival on Blythe Hill Fields, SE23 presents open air music, dance, family games, Punch & Judy, Brockley Ukelele Group, bouncy castle, drumming workshops and more between 11am-4pm, free.
To counterbalance all that outdoor, wholesome fun hit Feeling Gloomy at the Academy in Islington for a night of New Wave, just £4.50.
Sunday: Brent Respect Festival takes place in Roundwood Park, NW10 between 1-8pm. Expect global entertainment and a lot of dance, as it's also the start of Brent Dance Month.
The annual Day-Mer Festival celebrating the local Turkish and Kurdish communities happens in Clissold Park, N16 this afternoon with traditional and contemporary music, food and drink.
It's Earl's Court Street Fair on Hogarth and Kenway Roads SW5 between noon and 6pm.
In Forest Hill, the Horniman Museum grounds host World City - Music Village between 1-6pm with global music and food, dancing and kid activities, free.
London Folk takes over the 12 Bar Club, Denmark Street with songs and stories of the city. Entry is £5.50, which is 50p more than we'd usually tolerate but this lot are lovely and well worth it, we promise.
Tuesday: Gerry Howell and James Mason preview their Edinburgh shows at Set Up... Punchline Comedy Club, The Builders Arms, W8. Free, 7.30pm.
Wednesday: Back at Theatre Square on the Southbank, witness an extraordinary dance piece from La Mirada Transparente, sitting under a transparent stage and watching the action above your head. At 6.30 and 8pm, free.
Help keep London 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. And please do let us know if you follow up on our cheap suggestions - were they any good?