Consider a reflective vest: neon green for the daytime, reflective material for when it's dark. Amazon sells a popular one (careful which size to pick), and I've heard you can get them for cheap at a place like Harbor Freight too. I know IKEA also sells the same thing in yellow for around $5. Get a loose one and you can wear it year-round over any clothing or coat. Plus it's inexpensive.

You may have fewer cars pull in front of you if your lane positioning is different. I would suggest surfing Commute Orlando for a different perspective on that. And carry copies of your local laws on bike lane positioning.