Hands up who has heard of passive income? If you’re not familiar with it, passive income is that lovely thing that happens when you earn cold hard cash from someone elses efforts. It’s so important it’s written in huge letters on my white board to remind me of this little gem every time I cast my eyes right to remind myself what I am actually meant to be doing! OK, so this sounds great in principle but how does it work, is it ethical and how can I earn some money for doing practically nothing?