Join the ranks of the invisible rich by building wealth the right way. By David Muhlbaum, Senior Online Editor Updated 2016 Ever have one of those situations where you find out your brown-bagging coworker has a house at the beach? Or that the unassuming guy who sings next to you in the church choir made a five-figure donation to the symphony?See Also: 9 Wealth-Building Secrets of Millionaires You must be in the presence of what we like to call the "invisible rich." So, how do they do it? Sure, money like that can come from an inheritance or some other break, but more often than not, it’s the result of diligence, smart choices and, well, deferred gratification. The tenets followed by these secret millionaires next door can also put you on the path to financial prosperity. Let's look at some of them. Advertisement Number 1: They don’t spend beyond their means Yes, this is obvious, but it’s ignored as often as it’s repeated. This is what makes the invisible rich, well, invisible: They’re not conspicuous about their consumption. They’re value shoppers, whether it’s for a car or college or anything else. And they’ll buy used, putting items to use for as long as they still do the job. Meanwhile, they put the money they saved instead of buying shiny new objects to work earning interest and dividends. (Read 7 Best Things to Buy at Dollar Stores.) Number 2: They don't swing for the fences Just as the invisible rich take a pass on flashy things, they keep things simple when investing, avoiding more exotic options such as structured notes and hedge funds, even when their higher net worth opens the door to such investments. That’s not just because of the risk of losing principal; it’s also because of the fees that complex investments often bring with them. That’s money you’re guaranteed to lose, and money that won’t be around to grow your wealth over the long term. (Read 8 Steps to Be a Better investor.) Number 3: They keep themselves covered I'm talking about insurance here. It doesn’t do you much good to diligently work at getting rich slowly only to lose it all to illness, disability or someone tripping over the rosebushes at the end of your front walk. (Read 10 Insurance Mistakes to Avoid.) Read 10 Reasons You Will Never Be a Millionaire for more lessons about The Invisible Rich.