It’s a great way to continue to use your cover if you are no longer using the planner.
These journals are an excellent size: 4 3/4 by 6 3/8 inches. They are small enough to go everywhere with you in your bag but still have plenty of page space for writing.
The Exacompta journals come with either blank pages, grid or lined. The lined version doesn’t have the typical lined pages of other notebooks; instead, it has an undated diary format in the same form as the Textagenda/ Notor planners with the date and timed schedule at the top of the page and the rest of the page open for lists and notes. I used one of these years ago and loved the flexibility.
I bought my journals on Amazon, but you can also find them from lots of other online retailers, click here to see the list.