Residential real estate investments, mostly in San Diego, CA. I bought during the dip '08 to '12 and rent them out. Property managers take care of all of them for me. Most are condos, which are significantly better for cash flow than single family homes.

I got pretty lucky with them. One one I distinctly remember I bought for less than half of what the people losing it (short sale) still owed. They were all in pretty good condition, I just replaced the carpet, painted, made minor repairs, and replaced appliances.