Personal Caving. It's big, says CNN/Money. No, not the jagged rocky kind in the Tetons or Alps. The "new" mountains. Your personal "cave" at home -- repurposed from your former rec-room or 2nd home office -- where you can chill, get away from the daily grind and reflect, in the dark if you want to with no interruption from family, friends, but close enough to home (e.g., three feet) that, if you get hungry or lonely, you'll only be seconds from a chilled salmon platter or the new 64-inch HDTV screen you just installed in the great room adjacent to your cave.

To us, honestly, this "rugged" space sounds like a closet, with a chair or mat. But if calling it a cave and building a paper mache log fire and throwing some synthetic animal furs on the walls makes you feel more primal and centered, we're all for it.