When it comes to clearing out the mess, many of us fear we'll need to commit a significant block of time to finish the job. Not so, counters Donna Smallin, author of The One-Minute Organizer: 500 Tips for Getting Your Life in Order. "Set a simple goal—one shelf, one drawer at a time," Smallin says. "Just 15 minutes a day adds up to seven hours each month." Here are some of her specific clutter-clearing tips.