Sometimes your arms are so pumped out that it takes you five minutes to untie your figure-eight knot. Opening an energy-bar wrapper is out of the question unless you use the handy scissors on the Victorinox Climber Swiss Army Knife. If your climbing buddy makes fun of you, flip out the reamer and make a few threatening stab gestures. Snag a refreshment bottle out of its cooling spot in the river a…

…