I agree that the Villages is a great place to put in, but...
If you want a quick and easy free ramp, check out the ramp at the North end of Saline Bay. It's just off 155 on County Road 189 W. Go south on 155, then take a Left on 189. It's on your right about 1/4 mile down that road. Check it out on Google Maps satellite view.
There are lots of great crappie spots in Saline Bay too, so you don't even have to get out on the main lake.
I would not use this ramp , I have heard too many cases of vandalism and thievery.
The only free ramp I would feel safe to leave a vehicle is at the west end of the
dam ( old site of Deep End Marina) .
MY BACKYARD , 20,000 ACRES , NO MOWING