But, just in case I don't bring Coley...here's what's in my box:

Extra oar blades, oar, pins, and locks.
Patch kit and pump, if in the 'toon.
Two different multi-tools.
Extra anchor rope, and another good piece of rope.
Duct tape.
Super Glue.
Toilet paper.
Handheld GPS.
Cable saw.
Flashlight.
Med kit full of stuff.
Pliers.
Sunglasses.
Two pullies.
Matches.
Firestarter.

Most of that stuff takes up very little room if you pack it well...oar blades are bulky, and the pump when in the inflatable is very bulky, but I've had to use them both on the river before and wouldn't have wanted to be without them. As a matter of fact, most everything on that list has been used on the river before, if not for an emergency situation at least to make something easier or more comfortable.

Duct tape has patched waders and boats before...and a couple of years ago in northern BC I discovered that melting a steelhead worm with a lighter can be a quick and effective, but short term fix to a hole in your waders, too.

I've never "needed" the GPS while on the river, but I've used it to mark takeouts on drifts I haven't done before to make sure I don't float by it, or end up two miles from it when the sun is setting...or to mark a spot I'd like to hike into at a later date ...but the main reason I have it is so I can make my hike out as short and easy as possible if that's the way I have to get out of the woods.

Fish on...

Todd