Violinist David Juritz has just returned from a round the world trip funded entirely from busking, and shares some valuable lessons.
The concert violinist has performed in many of the world's greatest halls as a soloist, guest artist and concertmaster of London's Mozart Players.
But when he left his London home on 9 June he had an empty wallet and had to earn his fare into the city centre. Since then, he has made £35,000 in loose change and online donations - £11,000 to fund the trip and the rest for music education for some of the world's poorest children.
1. Put the hours in. To earn this sort of money, Juritz has worked from 6am until midnight almost daily from the day he left home until his return to London on Wednesday.
2. That's two million notes, played in 50 cities in 24 counties and on every continent but the Antarctic.
3. And earning an average of £83. Although only £7.71 in Berlin, which goes to show that the German capital can be tough.
Having listened to Juritz playing (above), how much would you give if you heard him busking?
A few coppers 12.95%
More than £1 14.20%
Results are indicative and may not reflect public opinion
4. It's possible to earn £2,500 busking in less than an hour in London, if your friends and neighbours come and support you. "Maybe they wanted to make sure I had enough money to go away for four-and-a-half months," he says.
5. Bach is much-loved outside Town Hall metro station in Sydney, which is a very busker-friendly city. Commuters not only stop to listen but know the composer.
6. Outside a concert hall is not a good place to busk, although Vienna is the exception. Railway stations are good - the grottier the surroundings, the better the busking prospects.
7. Busking can give you blisters on your feet, from walking, and on your hands, from lugging both your instrument and your luggage.
8. People in Rio live and breathe music. The rhythm and energy of their drum groups are very impressive.
9. All those coins will help Aids orphans in Uganda and the poor of Caracas rebuild their self-confidence through music lessons.
10. But they might boost the coffers of taxi drivers in Rome, who are keen to overcharge violin-toting buskers.