Just an idea about how to make 5 euros/hour by Skype

I am currently studying for the university and I have a lot of free time. I live in Spain and one day I decided to put a free ad in a Spanish gumtree-like site and offer English conversational classes by Skype for 5 euros an hour with a native English-speaking person. Lots of people (more than I could take) responded me and I had as many people as I wanted. I just have to talk to them about anything for an hour (sometimes half an hour) at a time. If you are able to fill all the gaps in your schedule, you can work as much as you want. It's normally people who know a bit of English but don't have time nor willing to go to English lessons and find that having real conversations with a native is quick, easy and cheap. And difficult to get outside the internet. You can make real good money. I even get paid by a mother to play Civilization V with her son for an hour twice a week and have Skype for voice talk while we play and comment the game.