Natural Bug Repellant?

I'm a real non-tox girly...but I'm also a real anti-tick girly.

I contracted Lyme when I was quite young, and the little pests have haunted me ever since. So, I've found lots of ways over the years to keep myself clear of them and others while also avoiding harmful chemicals in most bug sprays.

I have had great success with apple cider vinegar, eucalyptus oil, and cedar oil. Lemongrass also works really well for mosquitos. Does anyone have any other creative non-toxic bug repellants? I'd love to hear about them!