I think it is too early to do anything except make a plan and pack sensitive belongings. This storm has intensified so fast and the temperatures and conditions ahead of this storm are not consistent. It could de-escalate just as fast and be limping along as a low Tropical storm by the time it gets to Florida. The currents that are expected to accelerate its forward speed will have to kick in to 20mph or better for it to have time to maintain the capacity it is at tonight. I remember that Charley was not all that threatening until he started to enter the Gulf. Then he blew up. This seems to be doing the reverse in a general sense. But since we do not know what a 2mile wide eye will do at CAT5 level winds this far out from Florida, it is going to be a definite science lesson. Try to be calm so that you can enjoy the dynamics of the storm rather than fear them. It is thus far, like a serial TV show, you keep tuning in to find out what will happen next.