According to the FT, private equity has $2.4 trillion in dry powder.

As portfolios rise into the dozens+, most I know just have an amount of reserves like 30-50k not including dry powder. 

It's a good time to have a lot of dry powder.

My shakes usually have nuts, seeds, fruits, veggies, and protein powder.

This gives you the dry powder you need if a good deal comes along or unexpected expenses and you keep the existing low mortgage rates and do not increase your payment until you use the HELOC.Consider how you could increase the cash flow on the existing properties and if you have the means to pay off one of the houses to increase the monthly cash flow that way.

You will exponentially increase your dry powder.

What you'd want to avoid is just sitting on dry powder getting eaten up by inflation.

I grew up on government cheese, powdered milk, and hand-me-downs.

Other houses I intended to BRRR but by the time they seasoned, my dry powder was restocked and I didn't need to refi. 

I've also been sitting on dry powder, or cash, since mid-2019 as you can read from the blog in the link above.I highly recommend these books to mold your thoughts/investment philosophy when it comes to stocks:How to Pick Stocks Like Warren BuffetThe Intelligent InvestorIt's fair to say that I've been waiting for this moment to invest for over 10 years and time will tell if my instincts were right (So far I’m up 30% and have bought in very close to the bottom.