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!
I’d say an interesting thought to add would be an idea suggested by Mark Cuban a while back on his blog. It was basically the idea that you’re not necessarily saving money so that you can invest slowly and retire comfortably, but that you were saving every possible penny, at every moment, so that when an actual fantastic opportunity came around you’d have money to invest.
For some people, work just has to be in an office, factory, store, or any other environment that’s separate from home. Even a second job would have to be in a separate place. For others, a home office is a welcome place for a secondary or even a primary job. If you’re one of those people, you have some unique opportunities, but you also have some very particular challenges of working from home.