Hook, Line and Sinker—First line, First Page

Well there's something you don't see every day.Plot, characters, complexity—none of that matters on the first page.  What's important is to hook your readers.  The cliche is that you need a very good first line, but the truth is that if a reader has picked up your book (or read the synopsis enough to buy the ebook/download a sample) they're already invested and willing to give you some of their time.  Usually, a page at least.  So you have that much time to set the hook an...