Two Due is an efficient To Do List manager with lots of unique features. It allows for multiple lists, recurring tasks, integration with web browsers, and various categories for each to do item. Two Due stores its To Do lists as tab-delimited text files, making it easy to access multiple lists. It also remembers the files opened and makes it simple to move between them, while remembering and restoring different selection criteria and sort fields for each file. External files can also be imported.
