filofax

As nouns the difference between wallet and filofax

is that wallet is a small case, often flat and often made of leather, for keeping money (especially paper money), credit cards, etc while filofax is (trademark) a personal organizer comprising a calendar, address book, etc in a compact wallet.

As nouns the difference between calendar and filofax

is that calendar is any system by which time is divided into days, weeks, months, and years while filofax is (trademark) a personal organizer comprising a calendar, address book, etc in a compact wallet.

As a verb calendar

is (legal) to set a date for a proceeding in court, usually done by a judge at a calendar call.