I made a pen pocket for the front, so I can always find one, a ribbon placeholder to tell me which list I should be following, and a pocket in the back to hold coupons or store loyalty cards. See details:
I found the Mead notebook yesterday at WM for $1.78 - perfect size, and I know I can buy more when I need them.
After I made it, I found out it also fits a paperback (happy accident!) The owl fabric has been in my stash forever, as has the ribbon and charm, and I couldn't find the right project for it until now - sweet!
Once I had figured it out, I decided to make one for my Etsy shop, so please have a look -- just listed it!
7/15: ETA: this one sold, so check back later in the week for a re-stock if you're interested.