In Florida. We keep it in a local credit union and also a bigger credit union (NFCU). We do this because they love to see the cash over anything. We can leverage our cash (around 350k rolling) to get loans on anything, anytime/etc. Our rates are often really good. Some of my business cards report to my personal, so utilization is high because I don’t pay before the statement is cut. Because of that, I’m constantly at a 640-ish credit score. I can borrow anything, anytime, at the lowest rates - including houses. It also helps when explaining your income, you don’t need to show pay stubs if you bank with them.

Does my money grow at a higher yield? No. But the ability to get loans (personal and business) or funding anytime I want (not secured against my cash) is incredible. Again, the loans are not secured against my cash. They do have “cross collateralization” but that’s a whole different story.

I’m so gross. For me it’s a LAMP stack.

EDIT: Def stalking this thread to get better ideas.