I second the Nitecore D10 and EX10. Both are very versatile, easy to use, bright and small. The D10 takes AA batts while the EX10 uses CR123's. I actually prefer more traditional flashlights with reflectors over zebralights for an EDC role. While zebralights are excellent lights in a close-up role due to their pure flood output and lack of reflector, they really do not have any throw. For I light that I EDC, meaning that it is my only one, I prefer lights that have good throw and spotting ability on the premise that while a throwy light can be used to see up close, a floody light can not be used to see at a distance.
Anyways, the zebralight is an excellent headlamp/flashlight that would most likely take care of your need perfectly. I just find that I prefer a light with some reach (meaning that it has a reflector, which the H30 does not) for my own uses. If you are interested in checking out some more excellent EDC offerings, I would recommend you google 4sevens (am I allowed to plug a website?) and take a look at some single cell nitecores, fenixs, and quarks (under the 4sevens lights category). All are very reputable. If you are interested in something super small (barely larger than the batteries they contain) I would reccomend checking out the Nitecore EZAA and EZ123. They also come in neutral emitters (I believe some of the 4sevens quarks do as well), which I personally prefer. The light that they produce is warmer in tint and more comparable to an incandescent light rather than the more common blueish tint of many LEDs. I find that they give better color rendition and show colors closer to the way they look in natural sunlight.
Best of luck with whatever you end up choosing. And yes, the Zebralight H30 is an excellent choice for most uses.