After all these years of thinking 69 was our lucky number, the perpetrators of Nerve.com's wildly popular ''Position of the Day'' have hand-picked 366 of their very best erotic scenarios into one gloriously chunky, deeply inspiring, and hilarious compendium. Yes, that's 366 - one for each day of the year plus a little something special for leap year! Illustrated with anatomically correct drawn figures, the positions run the lusty gamut from plausible to creative to Honey, get my weight belt, this is going to require some heavy lifting! For beginners and the acrobatically challenged, there are accessible suggestions such as the Corporate Merger, the Wet Blanket, and the TV Dinner. Meanwhile, the adept and adventurous can try their hand at The Snow Blower, The Papoose, and the Quasimodo, which field-testing suggests is best attempted only after a vigorous round of stretching and a can of Red Bull. ''Position of the Day'' is about not becoming a creature of habit, because even the Excuse Me, Do I Know You? can get boring if that's the only position in your repertoire... Em & Lo (Emma Taylor and Lorelei Sharkey) pen Nerve.com's sex and relationships advice column, ''The Em & Lo Down (Advice from Near-Experts).''