Photo by National Media Museum.
Whether you'd like to have fine control over the things you put in and on your body or you're just looking to make a really economical lotion that will repel bugs and protect you from sunburns, this DIY lotion is a solution to your problem.
DIY web site Instructables offers a tutorial for cooking up some home made sunscreen infused with bug repelling oils from a spread of ingredients like coconut oil, vitamin E, and citronella (among others). It isn't as easy as, say, mixing a Margarita, but you'll be able to create it in bulk and customize it to your own bug- and sun-repelling needs. Check out the full tutorial for step by step instructions and pictures.
Sun & Bug Lotion: One Simple Solution [Instructables]