The PocketMod is a small book with guides on each page. These guides or templates, combined with a unique folding style, enable a normal piece of paper to become the ultimate note card. It is hard to describe just how incredibly useful the PocketMod is. It's best that you just dive in and create one.

The Compact Calendar is a versatile planning calendar that is easy to customize and print with Microsoft Excel. It comes in three different week styles, and is localized for different countries by volunteers around the world.

Get a second use out of your misprints with RePrint’s quarterly calendars!

DateLine is a small, simple app which displays a linear calendar on your desktop in a transparent window. It provides easy access to iCal by double clicking on a day. The background and text colors are customizable with support for transparency.

icalBuddy is a command-line utility that can be used to get lists of items (i.e. events and tasks/todos) from the OS X calendar database (the same one iCal uses.) It requires Mac OS 10.5 or later