A great place to start the day if you are in South London is Federation Coffee in Brixton Village. The food is great and so is the coffee. This is a very chilled place where you can get both and indoor and outdoor experience (even though the whole place is under the Village roof).
This independent cinema near Angel in North London is over 100 years old and has had several lives including hosting early Sex Pistol gigs. It now serves as my favourite place to watch films (along with the Rio in Dalson).
Not the most exciting place inside, but a lovely rooftop area which not all that many people seem to know about, 2 mins walk from Old St station. If it's packed then The Red Lion is just up the road.
Although off the beaten track from the large national galleries, 198 is no less an important part of London’s artistic heritage. Developed during the social unrest in the Brixton area in the 1980s, 198 has grown from a community arts space into an exciting contemporary visual arts body that is often the first place to see the next rising star of the London art scene.