I cuss them out. I try not to cuss... but when a mosquito lands on me and starts sucking my blood, I lose all control and revert back to my "f'ing mf'ers" days. So I get mad at them first, for sucking my blood with their disgusting little sucker thingys, and then I get mad at them for making me lose control and cussing them out.
My DD2 had a terrible time with them when we were visiting the Jersey shore earlier this summer. The In-Laws live on a lake, so the mosquitos were plentiful, and seemed to like DD2 best. Poor kid was one big series of bites.
I hate mosquitoes! A tip for hanging out on the deck, at a picnic, etc.: If you hate the smell of those citronella candles, try burning your favorite incense. I have found that mosquitoes hate incense.
shoulder-length 3a/b, depending on weather and products (or lack of products!)