It helps expand your journaling. Maybe you don't usually write 10 separate thoughts about your son's birthday party or trip to the zoo, but that does not mean there aren't 10 things to write about. If you know you'd like to try top ten-list journaling, you'll immediately start paying more attention to what's happening at various events in order to gather enough content for a page. You might even want to carry a small notebook and jot down funny or meaningful moments you could add to a page later. The whole family can get involved.
Different people can each contribute a few for the list.
You'll have more freedom with page design. Since your 10 sentences will be numbered, you're not restricted to writing all the text in one small square. Cut apart the sentences and scatter them around your page, like Julie Mangold of Washington, Iowa, did on her son's birthday page. Since each reason is a separate thought, you could experiment with different fonts, colors and embellishments to give each one a unique look. You don't have to come up with a page title.