- Frieze Art Fair is in Regent's Park but head to Victoria House, Bloomsbury Square for the Future Can Wait where emerging artists are exhibiting work for sale but entry is free.
- Sunday Art Fair at P3, Marylebone is also free entry and open till 11pm on Friday, 8pm Saturday.
- Take a free entertainment themed guided walk round Westminster, Clerkenwell/Islington, Greenwich or the City.
- Distance at the ICA "unpacks a suitcase of strange little performances" on Saturday and Sunday and they're all free.
- Southbank Square hosts the Autumn Cheese and Wine Festival.
- The Serpentine Gallery Garden Marathon looks at the horticultural, artistic, architectural and scientific importance of gardens.
- London Cocktail Week is a valid excuse to put an umbrella in your drink.
- It'll be loud and exciting if you're a percussion-head at the London Drum Show at Olympia.
- Chocolate Week climaxes with Chocolate Unwrapped at Vinopolis.
- Croydon and Sutton Real Ale Festival makes Wallington an attractive destination - head for Wallington Hall (NB it finishes on Saturday at 6pm).
- See a performance under the Dance Umbrella - Candoco Dance are celebrating 20 years of amazingness at the Festival Hall and you can join the vintage Dance Marathon at Barbican. Which reminds us...
- Do go and check that Ben Hammond is still dancing at the More London Scoop.
- The Binnacle Festival showcases 'future sounds' in a 'micro festival' at the Old Blue Last - weekend ticket £12, day ticket £8
- Drop by Tate Modern and check out the new Turbine Hall installation by Tacita Dean.
- Native Spirit Film Festival begins - and;
- London Film Festival is ON.
- Want to go clubbing? Spoonfed has some ace recommendations for you.
- Or find an Oxjam gig to to go to.
- Visit the African Book Market at the Free Word Centre, Farringdon between 5-10pm (free entry, all paperbacks no more than £5) with a panel discussion between 8-9pm.
- National Portrait Gallery is open till 9pm, featuring celtic folk song from 6.30pm.
- Did you read our guest review of Pipilloti Rist's Eyeball Massage at Hayward Gallery? Get a free curator's tour of the show at 6.30pm.
- Arthur Smith leads a special CoolTan Arts Largactyle Shuffle for World Mental Health Day starting at the Maudsely Hospital 11.30am and walking to Tate Modern. A tree planting ceremony will take place on Camberwell Green. Free but donate to CoolTan if you can.
- Get community minded in Holland Park with free tea and cake and bunting making for the kids courtesy of RBKC's city living local life initiative between 10am-3pm.
- It's Home Movie Day at the Cinema Museum, Kennington so dust off your cine films and get nostalgic. There's usually cake.
- The East London Lifestyle Festival offers a 'unique and interactive variety show' including laughter yoga, bollywood dance, magic and lunch at Community Links, Canning Town between 10.30am-4pm (tickets £15 - all proceeds to charity).
- Poverty 'Hear' weekend in Camberwell means a walking tour, spoken work evening and live music event at the Joiners Arms.
- UK Uncut lead the call to Occupy the London Stock Exchange, meeting at noon outside St Paul's Cathedral.
- Celebrate apples and abundance in Crouch End between 3-6pm. It's also Apple Day at the home of folk, Cecil Sharp House. Doors open 2pm (tickets adults £6/kids £4) and activities go on till 6pm, including singing and a ceilidh as well as lots of appley activities.
- Shop at Shoreditch Vintage Fair in Shoreditch Town Hall, 12-5pm (£2 in).
- Pay a visit to the first day of The Colored Museum at the V&A.
- London Roller Girls start a new season of fierce roller derby at Earls Court (Brompton Hall) from 7pm (tickets £15/7)
- Ealing Autumn Festival begins today on a Hungarian theme with a concert at St Barnabus Church at 7.30pm.
- Apple Day comes to Spitalfields City Farm means free family fun on the farm from 12-4pm. There are more appley events in East Dulwich.
- There's a Festive Family Fifties Day at the Geffrye Museum where you can "watch Fifties films, explore period objects, make terrific TV masks and listen to stories from the olden days" from noon to 4pm (free).
- Celebrate Diwali - the festival of lights - in Trafalgar Square between 2-7pm.
Other good stuff:
- Shows and exhibitions opening and closing in Arts Ahead
- Lit and spoken word from the Book Grocer
- Sci/tech/nerd stuff in Week in Geek
- What's on at Museums and Galleries
- Where to find the zingiest cabaret
- What's funny in stand up and sketch comedy
- Things to do in London on the Cheap
- New music gigs and bands