I pay yearly membership dues to the massive BLM and Forest Service "ranges" (any safe location I feel like shooting in) with my income taxes.
I've only been to an actual shooting range about 5 times in the last 10 years.
You didn't say what part of Florida you're in, but there are public lands to shoot on in the state. It's better in the panhandle than the peninsula, but there are places to shoot just about everywhere.
"Such is the strange way that man works -- first he virtually destroys a species and then does everything in his power to restore it."