"Living more hours naked each day results in a dramatic drop in my laundry, which in turn reduces my water and energy use (along with my related bills). It also reduces the amount of soap I release, in my case, into the Puget Sound."
Since I have to get dressed everyday to go to work, I'm not sure I would have a major impact by going nude at home a few hours a day. I could find time to dirty fewer clothes on the weekends . . . but I have a feeling my roommates would protest.
Does hanging around the house naked appeal to you?