"Isolator is a small menu bar application that helps you concentrate. When you're working on a document, and don't want to be distracted, turn on Isolator. It will cover up your desktop and all the icons on it, as well as the windows of all your other applications, so you can concentrate on the task in hand."

This is exactly how I organise things on my computer (plus dated, very descriptive filenames and lots of Saved Searches for tags).

High Priority is an inexpensive Mac OS X 10.4 or higher menu extra whose sole purpose is to help you manage your To Dos in a simple, intuitive, and pleasant manner.

Dinky little timer/clock thing.

Nice idea.

Only been using it a couple of days, and it seems to be indispensible. (Nice for mailing notes to Backpack/weblog)

Various OS X apps and utilities that are so useful it's hard to remember they're not part of the OS.

File management utility - looks pretty good.

Path Finder fills the gap between Apple's Finder and the command line environment by integrating many different features usually found in external applications into a single, powerful interface. Path Finder aspires to be the missing "Pro" version of Apple

TinkerTool is an application that gives you access to additional preference settings Apple has built into Mac OS X. This allows to activate hidden features in the operating system and in some of the applications delivered with the system.