In this way, without chemical repellents and at zero cost, you will keep away flies, mosquitoes and all those annoying insects that usually annoy us during the hottest months of the year. We must never forget that chemicals are not only expensive, but they also harm the environment and the people who live in it. The DIY method that we have just proposed is completely natural and safe. All you have to do is try it and see for yourself how effective it is. Do you think so too?