Also, there is a link on your watchlist page right under the boxes for Activity, Anniversaries, etc that will take you to all of your Free Space pages.
I have Free Space pages for both my maternal and paternal lineages. I like to keep pictures there and just link to them in the appropriate biographies so they're not cluttering up the profile page.
There are all sorts of things you can do with Free Space pages. Have fun experimenting, Matthew!