If saving money was easy, everyone would be doing it. It isn’t easy. When you’re earning a low wage, it’s hard enough to make ends meet. You’ll always have to make rent and buy food, and there’s no shortage of other things to buy if only you had the money to buy them. As your income rises, you can afford to be a little more generous with yourself. You might rent a bigger apartment or buy a newer car. You’ll eat out more often and treat yourself to a better phone. You’re earning more money but the month still feels longer than your pay. High earners have the kind of expenses that make other people’s eyes water. The payments on a top-end car can cost more than many people’s rents. The cost of just running a big house can take a large chunk out of an average person’s salary, and …