Take a shower. Not to sound sarcastic or anything but I found that if you take a shower with Scent-A-Way shampoo and body wash (the green stuff) the bugs don't bother you too badly. That and scent blocker clothing.
About the only thing that attracts them is your breath. The carbon dioxide you exhale attracts them. So if your scent free (as much as possible) and don't breath you should be ok.

oh yeah, what about that little electronic gizmo thye advertise on the outdoor channel. Its supposed to keep bugs away I think for a 30" radius. Sounds good but just one more thing to carry. But if it works and helps you keep still. Well ?????

I have been bowhunting out of a treestand for the last few weeks and the mosquitoes were ornry here too. You don't move around in a treestand....so even though the weather is mild, I have worn light weight-longsleeved camos with light weight longjohns underneath...along with a pair of light weight como cloth gloves. The only place the mosquitoes bothered me was around my head and neck. They can't bite through the long-sleeved clothes. Being a little too warm is a lot better than being eaten by the bugs! I just went to Gander Mountain and purchased a $2 hat that has a mosquito net that covers your head and neck area attached to it. It works great!...I sit for hours with no swatting.

Clint

Try Benadryl Gel......it's incredible

Bug suits are the only way to go.

One big downside to most repellant sprays is that the mosquito's aren't the only things that can smell. Deer can pick up the scent, too. I like to expose my clothing to smoke. Smoke is a natural scent that doesn't alarm deer. I spray my face, arms, and legs with 29% Deet, then add my layers of clothing. Leafy-wear is my outer-most layer, so that is the layer I cover with the smoke scent.

Go to Wal-Mart and get you a can of "No Stinkin Bugs", I use that and it has very little deet smell. I use the Earth Scent and the mosquitoes wont even look at you!!

No offense , but you need to study your 'skeeters a bit more .
Along with your breath 'skeeters detect your body heat , sweat electrolytes , movement , and color in some cases(they're attracted to blue) . There is also some supposition that they can detect electromagnetic fields from muscle movement like sharks as well , but it hasn't been conclusively proven yet .

Thermacell,

I couldn't beleve that this little contraption accually worked. So a borrowed one from a friend and put it to the test about two weeks ago. Here in GA we not only have mosquitos but we also have the little things called "so-see-ums". They are so small you don't know they are there untill they bite you, and they hurt worse than a mosquito. Anyway, I took this Thermacell, put on my bug suit and went up a tree in one of my favorate stand locations. Unfortunatly it is located on the edge of a 110acre swamp. So I get more than my fair share of bugs that hunt me. As the sun was getting low in the sky the number of bugs around me reached their peak. (I would estimate about 150+ mosquitos.) It sounded like Alaska in the summer. I don't care who you are it is hard to concentrate on hunting with that many bugs arround you, bug suit or not. At this point I turned the Thermacell on and waited. I took about 5 minutes or so to get hot enough to start working and in about 10 minutes I took off my bug suit and had on shorts and a short-sleeved shirt on underneath. I didn't get a single bug on me for the rest of the evening. There was not a single one anywhere around my stand. It was awsome. I bought my own the next day and have used it ever sence. It does have a little odor but I have seen over 20 deer in the last two weeks and haven't had a problem with them smelling it. It is no possible to concentrate on the task at hand. If you haven't tried this "gadget" I would recomend you put it to the test like I did. It is one of those things you will make room for in your bag of tricks.

I guess I'm skeptical about devices, but I am 100% USDA grade-A bug bait. No lie - I attract any biting varmint for miles around. People stand next to me and I'm getting swarmed. I just put on Layers and have a bug mesh hat that has no-see-um size mesh and I can deal with it. Of course waiting until after a good cold snap moves through will also neutralize the bugs. I'd rather sweat a little than lose sleep scratching, so I'll layer and keep a barrier method betwixt me and the little SOB's!

Wait until it cools off or make a trip up north and enjoy the frigid air!