In 2008, there were about 3.5 million kindergarten, elementary, middle and high school teachers in the country, so we can expect almost another 500,000 to be hired by 2018. Also indicative of the high demand for teachers is the large volume of grants available for teachers.
Another option is to mix small amounts of apple cider vinegar with the animal's drinking water; consuming this solution is known to change the blood pH of the horse, thus keeping horseflies away. Cider vinegar, coupled with essential oils, is also used in home sprays as the sharp odor may repeal horseflies.
Peppermint essential oil is a natural deterrent against mosquitoes and flying insects. Use peppermint oil alone or in a homemade insect spray to effectively repel mosquitoes, gnats and horseflies. Bugs may not like peppermint oil, but kids and adults usually enjoy its fresh, energizing scent. Plus it creates a cooling sensation that's perfect for hot summer days.