I think it is too small of a gain to worry about. But why not pay from your checking account where you get your pay or have money for monthly expenses and transfer from money market fund as needed to it.
I keep most of my cash at VMFXX or VUSXX, it's annoying transferring money every month or remembering. I guess I could figure out an estimate of total monthly autopays and set a reminder and do it a few days before hand...
My insurance is around $3,000 a year. With 12 monthly payments that would make an average balance in the bank of $1,500 (or so I believe). $1,500 x .045 = $67.5. If my math is correct. This is worth it to me! It is after all Mr Money Mustache. Not bogleheads talk me out of buying a $5,000 watch or SUV or Tesla, or $1,500 coffee machine :p
It looks like my alternative bank that pays 3.5% is not a checking account with physical checks but a savings. I could still do auto pay. Wish I could get the 4.5% and write out checks from that account as well. Have EVERYTHING under one roof.