Hi wallsofjericho, Do what you know and do it well. If you don't know anything, get an education that will help you to earn more money in a couple of years.
Some professions are easier to make more money on the side than others, such as electricians, plumbers, computer/network repairman/installers, bartenders, automobile mechanics, etc.
I'm trying to become better at investing. If you want to learn more about investing, then I would suggest depositing $500 at TDAmeritrade, download TDAmeritrade's ThinkorSwim software;,listen to Swim Lesson chats using the ThinkorSwim software for free, learn how to trade using the PaperMoney option (or the OnDemand feature for an accelerated learning experience) on the ThinkorSwim software for about 1 year without risking any of your money, and then when you have enough money to invest in stocks/options start investing.
Peace be with you and everyone, who you love,