I title them all (perhaps only one side of a 2 page spread, and I have done a 4 page spread where the middle page was trimmed so you could see the title from either page.)
Sometimes the title is only small - like a quote in a normal sized font, and other times it's across the full double page; they aren't all cute quotes either - in fact very few are as I can never think of them, they tend to just say where or what, like 'Animal Kingdom' or 'Swimming Fun' something more descriptive.
wow - long reply to a short question
Bev