OK, so when you don't have any pictures for that great paper you have, but cant part with. Make a layout and theme for that sheet,and go take pictures just for that page.

Ex: I made a page about blowing bubbles. I don't have any pictures of me and my friends blowing bubbles, but now, I have a great idea for a fun photo shoot with my friends.

And when you see those pages in the store that you don't know WHAT would go with them, do the same thing. Buy them and go take pictures just for that page.