The Simple What To Do List (Chrome Extension) is the simplest todo list web apps ever. You don't need to register, login or even wait a loading page.
WhatToDo keeps your todo list saved and easy to reopen anytime. WhatToDo works with your browser cookies. To add todo list, Type what to do and hit enter to save. And when you've done with your task, it's simply to remove the todo list by click X icon or the task.
Its saves your todo list in browser cookies, so your todo list always saved safely although you close the browser. Simple apps for your complex life.