One intuitive workspace to manage your Emails, To-do's, Projects, Sales, Client Service, CRM and Teamwork ... right in GMAIL!
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.
Todo.ly - Todo.ly is an intuitive and easy to use online Todo list, and Task Manager. It helps you to get organized, simplify your life, and to get things done. Create todo lists, and manage them online from anywhere.
Drag for Gmail - Transform Gmail into organized To Do lists (like Trello)
Doit.im - Doit.
KanbanMail - A Kanban board for your emails.
The Hit List - Your life is complicated, but managing it doesnt need to be.