Ticks: No one is safe...

[Tclipse01]

Lots of folks have mentioned permethrin already, but highly recommend using gaiters in addition if you're in a tick-heavy area. They don't have to be heavy-duty ones... anything that forces them to walk over the permethrin-treated clothing instead of sneaking between your boots/pant legs straight to your skin.

The knee-high Gore-tex gaiters are super unnecessary and will make you sweat, but there are some lightweight mid-calf stretch nylon options that are perfect for this. I really like the First Lite Traverse, they are super lightweight/breathable and won't make you hot, but still good enough to keep the ticks out (get the large size, they run small). Probably some other brands out there that make similar.

[Turkeyman]

Mixing your own is cheap and applying is easy. So i apply after every use. May be over kill, but i haven't picked a tick of me here in north florida in years.

Exactly. I mix a couple gallons in my garden sprayer and use it multiple times during the season. When I spray ALL my clothing...including periphery e.g. cap, head net, gloves et al...it is very dampened. Why would I "push" it and hope it's still effective after several weeks? 

[tracker#1]

I have friends who have contracted Lyme. One friend has had it most of his life and it almost killed him. So he dedicated his life to making others aware and did seminars around the states. The one thing he told me that stuck was this, "If you get a bite take the tick and send it out for testing because even if no bullseye red circle rash develops, it doesn't mean anything. Otherwise, it's like playing Russian roulette with your life"...