We are fully obsessed with this crazy versatile notebook from Koh-I-Noor!

This fully customizable journal contains 65 sheets of 70 lb. (114 gsm) heavy-weight sketch paper that performs well with pencils, pens and markers. We love that it includes a line template, so you can create custom line placement for sketches, thumbnails, and ideas, or leave lines out of a layout altogether.  

Both the pages and the line template include Chartpak's signature "In & Out Pages" which allow for the pages and template to be removed and re-inserted into any position within the journal. We've tested this journal for page loss, and are pleased to report that the In & Out pages really do stay in place after multiple removals and insertions. 
 
Our resident lefty also confirms that this journal is particularly handy, as writing or sketching left-handed in a sprial bound book can be uncomfortable.