If sipping lemonade underneath a tree in a swaying hammock is your idea of a lazy weekend afternoon, then this is for you. Choose a hammock-friendly spot and hang up a recycled plastic hammock. Gaiam (gaiam.com) sells a rope version that looks like a conventional hammock, but is actually made from 100 percent recycled plastic soda bottles. (The bottles are collected from curbside recycling, finely chopped and re-spun into rope.) It's nearly impossible to tell the difference between the green version and non-eco one. And because it's plastic, it's more water-resistant and less likely to soil or develop mold.