My father works training a lot of entry-level blue-collar types. They can barely make rent each month, but they always have the latest smartphone. If saving m

My father works training a lot of entry-level blue-collar types. They can barely make rent each month, but they always have the latest smartphone. If saving money is the goal, it's amazing how one can continuously optimize the process, and it doesn't require one to live in an unhealthy (e.g. malnourished) manner.