Low interest rates and the recent stock market surge make this a challenging time to find the best places for your extra cash.
Love to play the market and already have a diversified portfolio? Devote no more than $10,000 to mad-money picks that carry high risks but potentially high returns. If you win, great; if you lose, no great loss. Here's how to get in on three hunches.
You think the next hot niche is: China
Then buy: Matthews China
Which invests in: Stocks of Chinese companies (including those in Hong Kong).
You think the next hot niche is: Food
Then buy: Market Vectors Agribusiness
Which invests in: A global index of seed, fertilizer, and farm equipment producers.
You think the next hot niche is: Green energy
Then buy: PowerShares Wilderhill Clean Energy
Which invests in: An index of green stocks, including companies that make solar cells.
NEXT: Beef up your 401(k) (If you're 50 or over)