Remember in our book John Muir organized the Sierra Club in 1890. One of my magazines had a small notice about it. It read, Preserve Wildlife Habitats in Florida. Armchair environmentalists might consider signing up for one of the Sierra Club's 80-plus volunteer vacations. The week-long trip to Ocala National Forest is especially interesting. You'll replant native trees, restore trails and build barricades to protect endangered plant species. You can unwind from all of your hard work on the day off that's built into the schedule. Visit outings.sierraclub.org or call 415-977-5522. If you're interested in conservation here's a great oportunity.