It's dress-up for grown-ups, and the liveliest, most imaginative collection of Halloween costume ideas--447 costume ideas to be exact--from two hip, inveterate lovers of all things Halloween . . . plus dozens of other ideas for enjoying the holiday. Bridie Clark and Ashley Dodd are the dynamic duo, in or out of capes. For every level of interest, time--and irony--they offer suggestions. There's the ultra-quick: Pin several pair of underwear to a shirt,...