New business ideas

[Larry Flanagan]

I have a successful real estate company that I basically work part time and make full time income. I am looking for another business to start for diversification. I am open to about anything, as long as it is not a time vampire. Something I can spend a few hours a day on business development and hire a few employees to handle the majority of the tasks. Some random things that have crossed my mind: residential maid service, commercial janitorial service, carpet cleaning, towing, bed bug remediation, contracting/painting... There are a million possibilities, but I want the most buck for my time. Any ideas/input?