10 Investing Mistakes to Avoid in Your 30s
I'm happier in my thirties. I feel clearer about who I am and less apologetic about it, and more accepting of my limitations and also more aware of the ways in which I'm capable. -- attributed to Claire Danes
One critical capability all thirty-somethings should be aware of is that they can (and should!) amass a lot of money if they start investing in the stock market. There are lots of mistakes to avoid along the way, though, if you'd like to become a millionaire or multimillionaire.
Source Fool.com