Treasure hunters would revel at the idea of getting free money. But is it really a thing? I mean, are there seriously companies out there that will just give money away because they are nice? Yes, and no. Companies often pay out sign up bonuses when you use a new service. Some of the best (and easiest) ways to get free money are to switch services that you use every day anyway, such as bank accounts or credit cards.

Hotel rooms are highly profitable and very stable investments. The ultimate guide to investing in a hotel: understanding the meaning of real estate, different hotel types, valuations and markets.