The Travelers Co Notebook (formerly Midori) has a huge following all around the world and is a personal favourite of Bookbinders.
The cover is made from a durable cow hide leather so it can travel with you forever. The refills and accessories can be changed easily so that after each adventure you can file away your travel journal and take a new one with you next time.
There are many different kinds of refills including lined, blank, grid, diaries both dated and undated, sketch paper, air paper for more pages without the book becoming too thick, plastic zipper pockets, business card holders, pen holders, kraft paper, brass accessories, sticky notes and more.
There are 3 colours now for the leather cover, brown, black and the newest edition camel.
A quick image search of the Traveler's Notebook will no doubt inspire you to get creative.
Combining different refills in your notebook expands its range of use. For instance join together a date book and a notebook, two notebooks for business and private use, or a diary and record of ideas. Choose different refills for different uses and combine them according to your needs. How do you do that? Just use the connecting rubber bands as shown below.
For 2 refills - place the second book behind the first as shown
Then join together with your spare rubber band as below
For 3 refills - join two notebooks together first as shown below
then place the refills on the leather cover, make a space and pull out the original rubber band that comes with the cover
and then pass the 3rd refill through the original band
Here is a link to a collection of free downloadable images in PDF format you can paste to your Traveler's Notebook. There are calendars, world maps, traveller's conversion tables, country information, travel plan and travel card plus more. Just print them out, cut them to size and paste into your notebook.