Since the market is falling like a rock, I have sold most of my stocks and bond funds since everything is in a nosedive. Since cash in a brokerage account is only protected up to $ 100,000, it seems that it would be wise to put a lot of the excess cash in SHV. There might be a slight price decline in SHV, but dividends would probably at least keep you from losing on it.
Since SHV is a security, not cash, and is about as safe as you can get, I'm thinking of reducing my cash balance to well below $100,000. I expect several more months of the bear market followed by a trading range for several months before it is time to bargain-hunt.