OmniOutliner is a flexible program for creating, collecting, and organizing information. You can use OmniOutliner's document structure to create hierarchies of main headings and subpoints that can be expanded and collapsed, which are immensely useful when it comes to brainstorming new ideas, drilling out specifics, and lining up steps needed to get everything done. But you aren't limited to outlines - you've got multiple columns, smart checkboxes, customizable popup lists, and an über-innovative styles system at your disposal. Use OmniOutliner to draft to-do lists, create agendas, manage tasks, track expenses, take notes, plan events, write screenplays...and just about anything else you can think of.