Best strategy if you want don't want to do a ton of work?

[Bob Jones]

Hi,

I've heard it said on this site that investing in real estate requires 2 of the 3: Money, Knowledge, or Hustle. Well, I have a little money, and I like to think I'm a quick study. One thing I'm more reluctant to give up is my time. I already have a demanding job and a busy life. I want to invest in real estate, but a lot of investment strategies strike me as rather time consuming. 

I'm hoping to get some advice. What are the best strategies if your available time is limited? What would you recommend to the person who has money and knowledge, but is short on free time?