Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
PopTrayU - Have you fallen in love with the fabulous email notifier program Poptray, but you're running a...
Any.DO - The #1 task management app used by over 11 million people globally, Any.do is your free mobile and online task manager for Android, iPhone, Web and more.
Checker Plus for Gmail - Displays new emails and the sender's contact photo, get notifications or even listen, read or...
Microsoft To-Do - Task management tool
Gmail Notifier (restartless) - is a highly customizable browser extension that notifies you about the incoming emails from all your Google-Mail accounts and labels. Gmail notifier is available for Firefox, Chrome, Opera and Safari.