Look, I know it’s not always realistic to pull these off; I personally wouldn’t bother trying. But if you’ve got a ton of stuff lying around — not outright junk, but stuff you don’t need, like the aforementioned DVDs and kid’s clothes — it’s worth a try. Advertise on Craigslist and put up signs in your neighborhood, then come Saturday haul a table out to your driveway (assuming you have a driveway), load it up with stuff for sale, and take whatever you can get.

If you want to become rich by your 30s, you should be looking at wealth-building opportunities that pay off quicker than traditional long-term investments. One of the best ways to do this is to get into the entrepreneurial game and own your own business. Once you own a business, you have unlimited potential to earn, although you also assume more risk.
Using the money you already have to make more money is usually a pretty smart move. A service like Lending Club is a great way to act as a lender and earn interest on your money. Essentially, you act as the bank, which is pretty neat. Lending Club is the world’s largest online credit marketplace connecting borrowers and investors. Definitely something worth looking into!
And while it will take time to build up a big-enough audience to attract advertisers and other ways to make extra income from your podcast, the opportunity is there. John Lee Dumas interviews entrepreneurs seven days a week for his podcast Entrepreneur on Fire and now makes more than $200,000 a month from it. In fact, John publishes all his income online and showed that he’s made almost $13 million since launching in 2012. 
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