My dads the same way. Everything in EE bonds. About 30k in checking. I convinced him to open a money market account at his bank. He decided it was a "mutual fund", which I sort of guess it is, but it was spoken of with suspicion and disdain.
When the bank levied a fee of five dollars, which was in error, he decided that all this funny business was too much trouble and the money market was closed. Back into the checking.
Its funny though, his bank (one of the two biggies in the state) seems to slip some 3, 5 or 10 charge for something onto his account, he always catches it, they always take it off. I wonder how much money they're making off of a few bucks here and there "in error" with customers who dont scrutinize their statements like he does.
Premium gas. One of my favorite misnomers. About the only difference is the increased octane, which put simply causes the fuel to become more stable and produce linearly less energy than its less stable "un premium" fuel. Unless you have an engine requiring the more stable gas to eliminate "knock" or "ping", which is simply unstable preignition of the fuel due to high engine compression/heat, you will actually get less "bang" out of it, less power, and lower gas mileage.
Some premium.