Workflowy - A better way to organize your mind.
HiddenMe - Hide desktop icons with a single click.
A5 - Takes notes in your browser. Elegant & simple.
Hello Epics for Trello - Simplify your Trello board with parent/child relationships
Notepin - Extremely simple note-taking + blogging ✍️
Paws for Trello - The best way to use Trello on your desktop