RE: Thermacell
Not to interrupt the slug fest, but I bought one this year and used it for the first time. On the one hand, it did work and I would definitely use it if I hunted the southern swamps. However, here in western PA it has been pleasantly cool: even when the mosquitoes are out, it has been cool enough to wear long pants and a long sleeved shirt. With my hat and face net the only exposed skin is part of my face and my hands.
With that little space to protect, I have gone back to bug repellent. First, because the Thermocell does smell at least as much as the repellent and, second, because the pad that is advertised to last four hours started to give out after about 2 1/2: I spent the last hour with no protection.
If you don't have to deal with maximum exposure due to very warm temperatures, the bug repellent is cheaper, simpler, and can be applied as needed.