Lately, everyone from my best friend to the French woman who cuts my hair has been asking me what I think they should do with their money.

And these are the same people who, up until a couple months ago, would have much rather spent 30 minutes talking about socks than having to listen to me talk about stocks for even three.

Now, suddenly, they're willing to give up Patriots season tickets and Caribbean vacations to get into the market -- and that shows me that people are finally starting to believe that buying stocks can build wealth again.

So what am I telling them?
First off, I'm saying that I'm no expert, and that there's no telling if the market can continue along this trajectory without a serious pullback. Second, I'm adding that anyone who tells them otherwise should be ignored.

And finally, I'm saying that although he's lost his title as the world's richest man, I still believe in Warren Buffett and the process that made him rich -- buying great companies when they're selling at good prices.

That's why I recommend that people who don't own any stocks take the time to check out stalwarts like Procter & Gamble (NYSE:PG) and AT&T (NYSE:T).

Each has a rock-solid, world-renowned brand, has already weathered severe recessions, and will be around for decades.

Even better ...
I'm also a big fan of companies that pay you to own them, which is why I'm recommending that these folks look into dividend payers like Caterpillar (NYSE:CAT), Altria (NYSE:MO), and PepsiCo (NYSE:PEP).

I've even gone so far as to introduce them to master limited partnerships like Kinder Morgan Energy Partners (NYSE:KMP) and Magellan Midstream Partners, which are paying out monster dividends and have major tax advantages over regular dividend payers.

Swinging for the fences
Of course, like me, most of the folks asking for my advice are on the younger end of the investor spectrum -- and for better or worse, they all want to know which stocks will make them rich beyond their wildest dreams.

Again, I start by telling them that I'm no expert. Then I tell them that I think they should build a solid core portfolio before venturing on to riskier investments. Finally, I drop this pearl of wisdom on them: The market's next big movers are almost certainly small companies that they've never even heard of.

At first, they usually blow me off, arguing that some tech giant like Google (NASDAQ:GOOG) or an oil and gas titan like ExxonMobil surely will be the next stock to blast into the stratosphere.

So I explain that while each of these are good companies -- and potentially good investments -- they would have to pack on roughly $180 billion and $345 billion in market cap, respectively, just for their shares to double!

Granted, large companies can provide safer growth, but their size also places limits on that growth.

Next, I pull up a list of the top 10 percentage gainers of the past 52 weeks ...

Stock

52-Week Gain

Market Cap

HeartWare International

8,814%

$330 million

Diedrich Coffee

4,300%

$151 million

Radio One

2,545%

$124 million

Vasogen

1,120%

$64 million

Vanda Pharmaceuticals

1,114%

$282 million

Dollar Thrifty Automotive

1,111%

$444 million

Air Transport Services Group

1,076%

$193 million

OncoGenex Pharmaceuticals

969%

$181 million

Human Genome Sciences

868%

$4.7 billion

Valassis Communications

852%

$823 million

Source: Google Finance. Minimum market cap $50 million.

Notice anything?
Well, chances are you've only heard of one or two of those companies -- if any. Secondly, they are all small companies. And this is no isolated incident. Just take a look at the top 10 best-performing stocks of the past 10 years.

Now you can see why my Foolish colleague Ilan Moscovitz says small-cap stocks are the stocks Warren Buffett wishes he could buy, and why I tell everyone who asks that small caps are your shot to score big.

The nail in the coffin -- and your key to riches
Of course, along with being small and obscure, these stocks also share one other trait: They're completely ignored by the Wall Street hotshots who spend all their time covering big names like Google and ExxonMobil.

This means there is a much greater chance that the investing world misunderstands the true value of small caps -- giving you a shot to secure some amazing gains once everyone else begins to catch on. It's also exactly why Motley Fool co-founder Tom Gardner started Motley Fool Hidden Gems -- our signature small-cap investment service.

Among its more recent finds is Autoliv -- a Swedish manufacturer of seat belts, electronic safety devices, and airbags. Besides being a proven cash-flow generator, it sports an extremely shareholder-friendly management team that has turned it into the undisputed leader in its field.

If you'd like to see all the stocks the Hidden Gems team is recommending and follow along as it invests $250,000 of real money in a portfolio of today's top small-cap stocks (13 of 16 positions are in the green, with three up more than 50%), I invite you to take a free 30-day trial.

All you have to do is click here. There is no obligation to subscribe.

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This article was originally published April 24, 2009. It has been updated.

Austin Edwards owns shares of Google, Altria, Caterpillar, and AT&T. Autoliv is a Hidden Gems recommendation. Google is a Rule Breakers selection. Procter & Gamble, PepsiCo, and Magellan Midstream Partners are Income Investor selections. The Fool owns shares of Procter & Gamble. The Motley Fool is investors writing for investors -- and, as always, we have a disclosure policy.