Of course you don't have to invest $56,000 to get rights worth selling. Often you can buy master resale rights for $100, $50, even $10 or $20. You can even join resale rights membership sites and get thousands of dollars worth of products for a small monthly fee. Sometimes you can even find master resale rights products for free!

Why so cheap? Sometimes the products aren't very good, but often they're great products that weren't marketed well. Not seeing the opportunity, people sell their work for almost nothing.

Smart marketers know that sometimes you can just rename a product or change the marketing and have a hit. This is where Bill Gates could teach us the third lesson:

3. Repackage or rebrand, change the marketing approach, and build your own brand.

QDOS stood for "Quick and Dirty Operating System." IBM might have bought it even with a name like that, but being a savvy marketer, Gates decided to rebrand it. He dubbed it "PC-DOS," for "PC Disk Operating System." He targeted it squarely at IBM - and they bought it, big time.

When PC clones hit the market, Gates saw another hungry market with a burning need. Microsoft quickly rebranded DOS, dubbing it "MS-DOS" for "Microsoft Disk Operating System," thus building the Microsoft brand at the same time. The rest is history.

Resale rights products are often widely available. If you do the same thing as everyone else, why should someone buy the product from you? But if you take the time to repackage or rebrand the resale rights where permitted, you will have a unique product you can market to a hungry audience with a burning need. Because the next lesson we can learn from Bill Gates is: