I'll agree with the multiple approaches idea, and I think going on medicine FIRST is a good way to go until you know what the triggers are. When I had my first tonic-clonic, I was undiagnosed, and with my normal EEG, the neuro had me on medication for a couple of months then I was off of them because they guessed I didn't actually have a seizure disorder (they assumed it was an external cause).
I had my first real aura that I remember a couple of months later. Two years later, and after being off of medication for all that time, my partials were getting more and more frequent - especially starting in January time frame of this year. Instead of having one every couple of months, they were getting to the point where I would have several of them a few days a week. I cut out high caffeine content, ate healthy, always tried to get good sleep, etc. But I still had a second tonic-clonic in April of this year after several months of the partials getting more and more frequent. My new neurologist who I met yesterday seemed pretty upset that they took me off that medication so quick after my first seizure. And after what I've learned about kindling and what not, and seeing my own symptoms get progressively worse, I understand why.
But yeah, if you could find a definite trigger, I think being off of medication would be fabulous, but to me medication from the get go might just help prevent worsening symptoms. I think if they had kept me on medication for longer than a month or two after my FIRST TC, I probably wouldn't be having these problems now, as my seizures were pretty mild for quite some time, and now, even with one medication, I don't go a week without having auras and will probably need MORE medication to control the partials so it stops progressing.