Character master list. Got a lot of characters? This "quick and dirty" list helps you remember who's who at a glance. Add names, ages, and comments. Drop in a photo or drawing of each character to help you visualize your story.
A novel has a lot of moving parts. When you factor in research, articles saved with Web Clipper, and random jottings about who did what to whom, you'll probably find you have a lot of notes for your writing project. Consider adding a couple more to keep it all straight: a dashboard where you can manage the whole thing, and a checklist for bringing your completed opus to the world.