Well if it is my money I just add it to my emergency fund. You might want to buy an index fund with low costs.
Put some into an IRA so your gains won't be taxed. Put a bigger chunk into real estate if you want, especially if you are handy and can buy a fixer-upper cheaply and flip it. Do lots of research before jumping into anything, but there are definitely opportunities to be had!
If you received 30,000.00 how would you invest it?