You've got the ring (or you're shopping for one). Now it's time to plan the moment she'll remember forever. Here's a practical guide to planning a proposal that's perfect for YOU as a couple. Step 1: Know What She Wants Before you plan anything, think about her personality: Private person? A quiet, intimate moment will mean more than a flash mob Loves attention? Go big—public proposals, family involved, the works Adventurous? Think hiking summits, travel destinations, hot air balloons Sentimental?...