TIP: If you are new to planning or on a budget, undated planners and refills are available year round, can start on any date, and tend to be less expensive.
Step-by-step, here's what I do to add undated pages, usually three months at a time, to my planner.
1. I use an erasable black Frixion pens to put in the monthly dates, based on a 2014 calendar that I Googled on-line.
This is the only reason that I use black pens. It's important that it is erasable, since it is so easy to make a mistake on this part.
2. I block out the unused monthly calendar squares using washi tape.
3. I use an erasable black Frixion pens to put in the weekly dates, based on a 2014 calendar that I Googled on-line.
4. I block out any blank weekly pages with washi tape and a note leading me to the appropriate next month.
Sometimes, when you enter weekly dates, you will end up with an extra weekly page between the monthly pages. This is because months are more than four weeks long but less than five weeks long, so most planner printers simply add the extra week to all months for consistency in printing.
Say the month of April ends on Wednesday, the 30th. I still want to see an entire week at once, so I move April 28th, 29th, and 30th to the first week of May.
5. As an extra caution against accidentally writing in one of these blank weeks, I staple the extra week between the monthly dividers and the nearest valid, usable week.
6. Finally, I copy the dates, tasks, and due dates from my future area of my planner to the newly dated month and week pages. As I do this, I scratch out the entries on the future pages.
BONUS TIP: I also washi tape old future planning pages, which have information I must save on the back of them, to the tabs. This makes sure I don't accidentally use them instead of the newly dated pages. I don't staple this time because I don't want to put holes in my tabs. Washi tape is easy to remove when I want to discard the future page, if I use true washi tape. Be careful of cheap brands, which are difficult to move around.
P.S. Today, one of my beloved blog posts is being featured at Read, Rate, and Review. Thank you, Ashley, for letting me contribute to your blog.