Everyone should have an amount of money set aside for that rainy day.
It’s important to have money in the bank for emergencies.
From my experience it seems when you open that rainy day fund, there is no thought to the rate of return.
If you use CD’s, ladder them to get an overall greater return. Maybe a 6 month, 9 month, 18 month and a 24 month.
You might even check out some of the online banks that have very competitive rates.
My thought, every piece of money should be getting the best rate possible.