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.
The Freelance Rate Calculator - Get your minimum viable freelance rate
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Worklogs - Easy time tracking for remote teams working on Slack.
Basecamp - A simple and elegant project management system.
Freelance Rate Explorer - Visualize rates for thousands of freelance designers & devs