Keep moving - they don't frequently go after a moving targent
Sleep under mosquito netting - check the netting daily and sew up any holes that form
Take Vitamin E pills daily
Eat a banana daily
Cover exposed skin with Avon Skin So Soft
Wear "Bug off" clothing
And if all those fail,
Deet is the answer.
I'm a fan of Repel brand, but any aerosol spray with greater than 15% Deet will prove effective.
Spray it on yourself as you get out of the shower each morning/evening, spray it on your clothing as well as any exposed skin. It usually smells terrible, you'll get used to it.