It's obvious people intend to spend money when they have money, like a salary earner every month ending they just have the desire to buy much cause they have the money. They spend money on unnecessary things just to satisfy their desire. I think this are the common reasons why most people can't save their money, they lack financial discipline.
I personally, ever since the economy got so hard in my country I learnt how to manage my money, the urge to spend will always come but due to the economy I don't spend my money on things that are not necessary