hoist, pull, lower (over cliff), climb (up cliff), throw, tie together (in a bunch), tie together (like two things across a distance), hogtie, leash, set traps, or use as a belt. You'll want high ranged attack (for when you're throwing/shooting a grappling hook), you'll want to have trap finding/making skills (roguish), maybe get some survival skill if you're doing this in the forest, and some handle animal if you're going to use it on animals.
Since using rope just as rope tapers out pretty fast, you may want to consider going for a class that will give you a few spells to work with the rope (mage hand, etc).