Most of my pages have titles. In fact, I think ALL of my layouts have titles. Some are one word, and some are pretty long. It all depends on the layout. I find that a catchy title really makes people want to look at the page(s). You might not want to put a title on all of your pages, and that's OK, too.
I create my titles in different ways. Sometimes I stamp them, and other times I use my BigKick to die-cut them. I use rub-ons, my computer, and occasionally stickers.
Here is a layout from Halloween of last year. The title is simple, but effective. I used my BigKick and the Vixen set by QuicKutz.