Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
HexChat - HexChat is a fork of XChat with bug fixes and new features.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
irssi - Irssi is a terminal based IRC client for UNIX systems.
Remember The Milk - Remember The Milk is a task and time management application for mobile devices.
Kiwi IRC - A hand-crafted IRC client that you can enjoy. Designed to be used easily and freely.