Ropes:Make a rug or recycle it!
Sterling Rope - consolidates ropes and re-pellatizes the nylon
Green Guru - recyles bike tube tires, wetsuits, & banners too!
Yucca - gives you a discount on a new rope with trade-in
Millet - for European climbers

Polycarbonate water bottles:
visit earth911 to find recycle centers.

Clothes: Patagonia will recycle Patagonia capilene, cotton tees and fleece, and any non-Patagonia polartec fleece.

Energy Bar wrappers: Check this out! Terracycle will ship you collection bags which you fill with 200 foil-lined wrappers and pay for you to send it back to them. Even better, they will donate 2 cents perwrappter to a nonprofit of choice.

Tents: Sierra Designs will recylce old tents for good causes through their Re-Purpose with a Purpose program.