Job...that might not be the right word for it. Instead of thinking about it as another job, consider getting a second source or third source of income. I can see how this might be a weird idea. But, in the future, creating a second or third source of income is very possible even without disrupting your life.
Consider this - the wealthiest people in the world have an average of ten sources of income. Yet, the majority of middle class Americans have only one source of income. Do you see the discrepancy? Why do the rich get richer? Because they have more sources of income.
With the ability to market a product that you don't manufacture or even keep an inventory of, making money has gotten easier. For example, just search "product drop shipping." You'll find many companies who manufacture a product and will sell it to you at wholesale prices, and in many cases, will even ship the product to the end customer. All you have to do is sell it.
If I have sparked your interest and you would like to learn more, contact me to set up a time to talk further about creating multiple sources of income.