The way I remember it, you have to spend 183 days (sometimes stated as 6 months and one day) of the calendar year to establish yourself as a FL resident. If you want to use FL as a tax haven, best to get down there, get your drivers license and switch your plates to FL, register to vote, establish a doctor, change all your billing to FL, and your bank accounts. If you hold any professional licenses change your address with the state. I assume other states have similar criteria and similar steps will help establish yourself as a resident.
If you aren’t switching your residence, then I would just use a relative as a C/O address or a post office box. Change billing to online, maintain your home bank branch in your current location.
I would guess states only pay close attention if someone is trying to evade taxes. If you are paying taxes for your state, I doubt any government agency is going to go looking into anything.
How many days do you plan to travel and be out of state?
Disclaimer: I am not a lawyer, I am a licensed real estate agent in FL, and these rules are important for FL homestead exemption for property owners so we are taught it in our education for the license. Many northerners switch their residency to FL if they live in both places.