Although some of you may not be comfortable with the idea of someone else staying in your home, over the last few decades the idea of trading houses with another family for a few months has been gaining popularity.
Another option is to take care of someone’s house while they are out of town. You can easily find a gig like this on various forums. It’s a free place stay in exchange for walking a dog and watering the plants. It doesn’t get much better than that.
By volunteering for a good cause, you won’t just be helping out earthquake victims or taking care of orphans but potentially have your flight, housing, and sometimes food provided. Keep in mind, most organizations will require a significant time commitment (at least 1-2 years).
If you are lucky enough to have your own property, then renting it out while you are on vacation is potentially a good way to keep your bank account full while you’re on the road.
While this very efficient method of transportation can be hard to arrange, try searching travel forums or even asking around at the hostel you’re staying at. If you don’t manage to find anything you can always, well…