Noun
Filofax (plural Filofaxes)
A personal organizer comprising a calendar, address book, etc. in a compact wallet.
My ace in the hole as a human being used to be my capacity for remembering birthdays. I worked at it. Whenever I made a new friend, I made a point of finding out his or her birthday early on, and I would record it in my Filofax calendar. Susan Orlean
Underneath Ephron's biting wit and cavalier attitude lie a deep love for family and a fondness for objects and places that bring back memories such as egg cups, her Filofax and Saks Fifth Avenue. Source: Internet
I just ordered a personal size Filofax. Source: Internet