We started carrying a product called "The Ultimate Insect Repellent", made by the people at Liquidfence Deer Repellent. It has been flying off the shelves as people are looking for an effective mosquito repellent that does not contain DEET. It contains all natural ingredients including lemon grass, cedarwood and citronella oils.
I have tried it and am happy with the results. It comes in spray bottle or toweletts. Check you local garden center, or order straight from Liquidfence. Let me know if you do use it how it works for you.