I find that most of my youth ministry friends are using their phones for organization; in fact I have not used a paper organizer for years (from my monochrome Visor Palm device in 2000 to currently my Motorola Droid). That said I do prefer a pen and paper when it comes to brainstorming ideas, I mostly use a homemade journal or a Moleskine for creative space. Other than blank paper here are a couple of sites that I think do a good job of offering several templates for you to use in sparking ideas or if you are just looking for free day planner inserts instead of giving Franklin Covey $50 bucks.
Pocket Mod:
Disposable organizer on one sheet of paper with multiple uses. There are dozens of options to choose. (My mother-in-law said she would use this concept as a kindergarten teacher for making little booklets). Here are similar sites that do the same thing (www.pocketmod.com/v2 and www.pocketmod.com/app)
DIY Planner:
You can Google and find several calendar tools but this site has it all. Browse through all their “templates” and find downloads for several types of time management tools. From 3×5 card size to full sheets. Sift through all their FREE resources.
I used one of these for a while in between PDAs… it was a lot of fun, but not too useful when I laid it down in a water ring from a drink at lunch 🙁