I have been struggling with this for some time now. I'm having a hard time figuring out what to do with my emergency fund, even after reading umpteen threads and online articles about options. We have about 8 months' expenses in a money market account earning 1.1% interest. In an actual emergency, we'd change our spending habits and it could then easily become 10 or maybe even 12 months' expenses.
On the one hand, having this amount of liquid cash gives me a sense of security, which is something I value. On the other hand, mathematically I know I'm losing to inflation. I've considered other options, like a CD ladder, but the terms would be so short to do this without losing liquidity that I wouldn't come out ahead on interest, at least as of the last time I looked, a few weeks ago.
Should I just accept the loss of buying power on this money over time as the opportunity cost of liquidity? We are fully funding two 401ks, two 529s, and a brokerage investment account separately from this cash. We have a mortgage and a ridiculously low interest student loan and are comfortable paying both of them off on schedule.
I guess it's really a two-part question: how much cash is too much, and, if you have "too much", what do you do with the "extra" that preserves capital and is liquid?