Make More at Your Job
There are several ways for you to make more at your job. From productivity increases, raises, increased performance based compensation and commissions, learning new skills while on the job that increase your value to the organization or even to apply to your moonlighting second business.
Time is Money too.
If you increase your efficiency at work and are able to accomplish more, then that should leave you with more time. If your employer does not value your efficiency through a bonus, added commission or raise, then at least you may have more free time to start a side business or other money making or at least money saving endeavor.