Easytask is a HTML5 extension for Photoshop that serves as a productivity enhancement. You can create and manage tasks using a simple and easy todo-list like interface.
Tasks can be saved so that next time you start up Photoshop, the tasks you were working on are there. Unfortunately the current implementation that Adobe has supplied does not give much documentation, and therefore, I cannot implement Window-close-based saving. You WILL have to save in order to retain all the tasks.
IMPORTANT !!! The extension is compatible ONLY with CC applications unfortunately.