Worried about a budget?  You can travel the world nearly free of cost. Not all of us can afford to book a world trip to the best ultra-luxury hotels and places in the world.  Yet we all have that dream.  Especially if you’re young, or young at heart, but the bank balance is not what it should be.  Then how do you travel the world for free or nearly free?1. Holiday Home or House SwopWe just loved the classic movie “The Holiday” which is all about two girls doing a house swop. Places like Homebase-hols specialize in getting you the perfect holiday house swop.You might have to pay a membership fee…