Edit: Some tips for visitors.
Most beaches are beautiful and most have free access. Enjoy, but wear sunscreen (and keep reapplying). Oh and bring lots of water; playing at the beach dehydrates you fast. If you pick a Gulf Coast beach (Clearwater is nice), as you enter the water, skoot your feet on the sand. That flutter you feel across the top of your foot is a minor stingray. Won't hurt you unless you step on it.
Don't bring an umbrella. The lightning here will kill you. Just plan on not being outside in the summer during the hours of 2pm - 6pm.
Georgia drivers ... can't. I jest. But seriously...
UF and FSU football... you will get so tired of seeing those school colors.
:)
If you feel a tingly sensation on the back of your neck or detect a sharp ozone-like smell, crouch down and cover your ears. Don't play golf or baseball in the rain. If you hear thunder or see lightning, go inside.
Football is the unhealthy sports obsession of the South. You would think that in February, after the pro season ends, you would get a reprieve from it, but no, you don't. Baseball is the alternate sport. Basketball is a legend from a distant land, and nobody even knows what a hockey is. Stanley Cup playoffs are happening right now, and local television news would rather air a 10-minute story about some high school football team practicing for next year's season instead of 10 seconds just saying that the Senators beat the Bruins. If you don't love football, you will get so sick of football.