Witness the capital's enviable live music
Apart from buskers murdering Coldplay on the tube, you’ll find free music across the capital. Camden pubs such as the Lock Tavern regularly host free gigs while Rough Trade record stores put on in-store performances by suprisingly big names.
Enjoy some free concerts
For some free Bach or Beethoven try a student performance at the Royal Academy of Music or an evening concert at St Martin’s in the Fields. If you’re under 26 you can also enjoy a huge range of free events at the Barbican arts centre.
Get your sides split for nothing
A smile costs nothing so they say, especially on Tuesdays at the Camden Head Pub or Wednesdays at the Comedy Café. Each venue hosts free nights where comics try out new material (be gentle!).
Pedal for free
For a couple of quid you can access the capital’s network of bulky-but-brilliant “Boris bikes” for 24hrs. Hiring the bikes is then free if you limit each ride to 30min (a range of apps help you find the docking points - try http://cyclehireapp.com/).
Seek out some real wildlife
With London Zoo costing a staggering £63 for a family of four, it’s worth knowing you can see wildlife for free in the capital. Richmond Park is famous for its herds of deer while the Lee Valley provides everything from butteflies to swooping peregrine falcons.
Behold London's pomp and ceremony
Pageantry breaks out regularly across London from the Changing the Guard to the Lord Mayor’s Show, both free to view. For something less stuffy don’t miss the Notting Hill Carnival held each August bank holiday.
Forage for the city's best free food
It's a wee bit cheeky but you can sample plenty of free titbits at London’s wonderful food markets – try Borough for the widest range or its smaller, cooler, rival Maltby Street. Even Harrod’s food hall hands out the odd morsel to the great unwashed.
Exploit the numerous 2for1 ticket offers
Both Visit London and National Rail’s Day’s Out Guide offer a range of 2for1 deals for those travelling by tube or train. If you simply must go to Madame Tussauds this is probably the cheapest way to do it.