Who are these mysterious Hallowe’en cuties?

Why, Ashley Olsen & Marc Jacobs, of course! (Awwwww!)

I am loath to admit that I do not have a Hallowe’en costume of my own yet. Nor do I have anywhere to wear it. Bummer! Tell me about your amazing costumes & extravagant parties-to-be & let me live vicariously through you!