So you're about 30 miles between stores- that's reasonable/usual. For me that's roughly two hours.

I have the Topeak Road Morph- it's frame-mounted, but very small, so you could carry it in a Camelbak if you're a Camelbak wearer. I love it. Very user-friendly- I could even figure it out several months after purchase when I flatted- with no instructions.

I would carry two tubes and a patch kit. Patch kit is way easier than changing a tube if you don't have to- you just locate the puncture and what caused it, just weasel that little section of tube out of the tire- don't have to remove the whole thing. I've ridden _hundreds_ of miles on a double-patched tube. I have those little Park Tools patches.

I carry the Topeak Alien multi-tool. (Apparently I'm a heavy supporter of Topeak!) Really, you're only going to need tools to raise/lower seat, fix bottle cage/shoe cleat, tighten anything that rattles loose. In that vein- it wouldn't hurt to carry a spare cleat screw, or water bottle screw. (If you lose a cleat screw- you can rob one from your water bottle cage!) You can patch a slashed tire with a dollar bill or Powerbar wrapper.

Other than that, the other repairs I've seen needed have been _major_, from crashes (usually sliding on a bridge grating when wet- be careful of those!!) - nothing you could prepare for.

Money- lots of money! At my series, we pay for our medals at the end of the ride. For my series, it's $10 each. Then we get them at some mysterious time I haven't figured out yet.

I'd carry electrolyte caps because you just can't get enough through a regular diet, even with Endurance Gatorade, and if you don't get enough electrolytes, your stomach shuts down, and your done. (Not to mention the much worse problem of hyponatremia!) I use Succeed Caps. I use one/hour if not sweating, one/30 minutes if moderately sweating, and one/20 minutes if heavily sweating.

http://www.ultrafit-endurance.com/succeedcaps.html

Also, I like the Succeed Pre-Race Vitamins/Minerals

http://www.ultrafit-endurance.com/sucprervit.html

and take them before anything longer than a Century, and after 12 hours if it's going to be a _very_ long event.

Nanci