I have a house on Fire Island... which other than it's awesomeness, is also known for having a lot of tiny vampires... I have washed myself in Gin, I have used the anti-mosquitto app on my phone, I have used fabric softeners, and nothing works better than Deet. Deep woods, as much Deet as you can get Deet. Everything else MAY work for inland blood suckers, but the beach is hard core drainers.
-OOG Michael Smith