Since I've gotten more than a few inquiries asking for more details about my 2013 planner, I thought I'd share in this post...
The most important thing to remember is to make is completely and totally yours. Otherwise you won't use it. Make it a size that feels good in your hands, that's user-friendly for you. Mine is about 6"x8" closed.
I have a big (old) commercial heavy-duty binder that makes a very secure book. You can have this binding done at a print shop or you can use a 3-ring binder which has the huge advantage of being able to add and remove pages. For the dividers themselves, I folded medium- to heavy-weight scrapbook papers, stitched monthly tabs (made on my computer and laminated) to the folded edge and wrapped printed packaging tape over other side to reinforce holes.
I used clear stamps for numbering the actual days. This process takes a little while but perfect to do when you need a tv-watching task possibly. These stamps were exactly what I had in mind for mine and love how they worked out.
So, for the date pages I list appointments and anything else date related. For the flip-side pages, I list things going on that week, or lists, or blog ideas...anything! I've provided the templates for the day pages and the flip-side pages for you. To print the pages, you'll want to print out the date page (2-up) then put that page back in paper tray and print the back template onto the back of that sheet. I've used this paper for projects like this for years and love love it.
It's mid-February but that's not too late to make your own planner. There's plenty of 2013 left to enjoy!