Mosquitoes prefer warm over cold, light over dark, dirty over clean, adult over child and male over female. Once the mosquito bites the hand that feeds it, treat the bite with saliva. Then apply any of the following:
Wet soap
Wet tobacco
Wet mud
Watered-down ammonia
Mixture of equal parts vinegar and lemon juice
As for the mosquito, after it bites you on one hand, give it the other hand-palm downward!

Mosquito and Gnat Bite Prevention
Remember how, when you were a child and got bitten up by mosquitoes, your mother would say "That's because you're so sweet" There may be something to it. Experiments were conducted with people who completely eliminated white sugar and alcoholic beverages from their diets. They were surrounded by mosquitoes and gnats. Not only were those people not bitten, the insects didn't even bother to land on them.

Mosquitoes have been known to stay away from people whose systems have a high amount of vitamin B1 (thiamine). Before you go to a mosquito-infested area, eat foods that are rich in B1-sunflower seeds, brewer's yeast, Brazil nuts and fish. Additionally, supplement with 100 mg of vitamin B1 (thiamine) every day for a week before you leave for the infested area. Also take B1 an hour before you reach your destination.

Keep geraniums on porches and other places you like to sit. The potted geraniums keep mosquitoes away. If you dread mosquito bites more than you mind smelling of garlic, then we've got a remedy for you. Rub garlic over all your exposed body parts before reaching a mosquito-infested area. Mosquitoes will not come near you. They hate garlic. Garlic is to mosquitoes what kryptonite is to Superman.