Think of decluttering as the ur-resolution, the one move that makes all other goals more achievable. The whole-house, whole-family plan in these pages is designed to save time (fewer closet excavations) and aggravation (no more pantry landslides). It might also erase guilt, since clutter reminds us of the decisions, big and little, that we've dodged. More shelf space is lovely, but more mental space is the real game changer. What will you do with yours this year?