The question was "how do I add to ..." rather than "how do I earn (in total) ..." ... so in that case, are you ready to work 80 hour weeks? If you're thinking

The question was "how do I add to ..." rather than "how do I earn (in total) ..." ... so in that case, are you ready to work 80 hour weeks? If you're thinking of adding a side-business on top of your day job than you really need to treat the side business as the second full-time job to hit the $100k mark, which is possible if you completely jettison all leisure and recreational activity from your schedule. Good luck.