I decided I needed a month-at-a-glance for the month of August in my planner and I didn't want to draw one. So I printed one off of the Internet at www.print 2017calendar.com. I printed it onto card stock and trimmed it to fit my planner.
Then I took a strip of invisible tape and put one edge on my ruler a quarter of an inch in. Look very closely at the picture and you can see it.Then I butted my calendar up to the edge of the ruler and pressed the rest of the tape onto the top edge of my calendar. Voila! My tape is nice and straight on the top edge of my calendar with a perfect quarter of an inch hanging over the edge. Remove the tape from the ruler (NOT from the insert) and trim the excess tape on each side of the insert.
Now do the same thing on the other side of the insert. Take a piece of tape and put on the top edge of the insert without the tape touching the opposite page. Once the insert is positioned in the “valley” press the other edge of the tape to the opposite page as close to the “valley” as possible. Now your insert is securely attached to your planner. I added washi tape for some pizzazz.
So now that you know this easy peasy way to add pages to your planner, the sky is the limit. Just think of the possibilities: calendars, trackers, printables (like my calendar), etc. etc. etc. I hope you find this little project interesting and doable.
Stay cool in the summer heat.