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Passubuy is a simple and fun way to buy, sell, and share stuff, all within your Facebook network.
Have you thought about taking a sabbatical? I just spent 4 months in Spain and it really helped me to come back refreshed and ready to launch my next product!
I think this is a great idea, and I would love to see the x-degree of separation to the sitter.
I would suggest going out and having some adventures! If you don't have any problems, you probably aren't taking a lot of risk with your decision making. Get out in the world and experience things. Perhaps start by volunteering, this way you can help others AND see how others are struggling. It will help you to sympathize with others, and allow you to view the world in a more realistic sense...therefore helping you to identify problems that you could help solve!