So if we only rely on salary to meet our needs and fulfill our desires it will be difficult. so all we have to do is invest so that the money we save can make our regular income in a certain period of time. Certainly here we are talking about investment in crypto currencies such as bitcoin, ethereum and others. this can be an alternative as a short-term or long-term investment commodity. In addition to investing in crypto currency you can also use it as a payment tool for certain online or offline stores that have agreed to use crypto currency.