Here is the gold hack, which is a platform provide earn extra money to travelers.You may earn by joining Glocalzone and add travels to the site and wait for the offers. People start to demand lots of products. All you have to do that buying their demands and bring them. Then, cash, cash, cash!!!
The last hack is meeting locals. If you met one time, you share all of your experiences at all times. It means that you can host him and he can host you. Also, he can show you the cheap local restaurants.