Mosquitoes are a nuisance and uninvited guest that no one wants to see, but sadly, they oftentimes make their way to a patio near you when the weather is warm. If you are sick and tired of mosquitos bothering you every time that you are on your patio, it is time to put your foot down (on the mosquito, if you can) and learn how to keep these pests at bay. Start with these 19 winning tips.