At last, a hi-tech way to keep track of No. 2: the Poo Log iPhone app. Recording such critical factors as delivery ("smooth like butter, baby"), size/shape (pebble or liquid), and number of particles, the app is based on best-selling What's Your Poo Telling You? In addition to digesting the data you input and offering medical advice and graphs, the Poo Log offers a quiz on digestive facts, and friendly encouragement ("We now dub you King of the Porcelain Throne"). With apps like these, that pile of bathroom magazines looks positively 20th-century.