I am sure others have thought of this, but putting it out there for others. I can only have one direct deposit from my paycheck but I like to have my investments be automated.
My company has an ESPP program so I have updated that withholding to include my Roth IRA amount. Now, I earn money when executing the ESPP and can sell for money to my Roth. (Yes, I know there will be capital gains, but I plan to use long term for this method.)