I would tell brokers that I was only interested in retail sales to supplement my investing and they would typically just roll on with conversations about retail sales.

Now we supplement that with other pure rentals.

Also, I am aiming to supplement  the long term cash flow with a couple flips here and there once I accumulate the capital needed to do so. 

They can last for years without any supplemental feeding - they just live off the insect larvae and probably some of the plants that grow in the features.  

Their idea of retirement planning is being forced out by HR, then working part time at some menial JOB to supplement SS & just hope to survive.

I would like to slowly build up an invantory of rental properties that could supplement and ultimately supplant my electrical business income.  

My wife and I joined a RE mentoring and education group in the Houston, TX about a year ago and decided to pursue SFRs as a way to supplement retirement savings/income with a view toward possibly shifting to Apartments in future.This all started 6 or 7 years ago when my brother recommended Rich Dad, Poor Dad to us.  

Maybe you just want it to be a supplemental income that will help you in retirement.

I am currently looking supplement my income and help pay off student loans through RE investment.

My short term goal after executing my initial plan is to purchase 2-3 properties per year to gain experience and supplement my income.