While I was in Japan, I purchased two of these personal diaries at an art museum in Kyoto. The 2009 Creator's Diary -- created by D-Bros, the product design arm of the marketing and advertising firm Draft -- allows creatives to keep up with their day-to-day activities on the top half, while tracking projects from week to week on the bottom half. I especially love how the binding allows you to continue projects without having to "turn a page" or recopy anything -- just keep folding it out!
The photographs here are from the Japanese design boutique Kok-Design. The diary is approximately $29 USD.