MemPad - A handy, powerful and free plain text outliner and note taking program with a structured index. All pages are stored in a single file. The program offers standard editing functions including cut, copy, paste, undo, date/time insert, drag&drop, and supports Web links as well as network and local file or folder links (full path not required) and internal page links. Environmental variables can be used in file links to run programs, for example. MemPad always saves data without prompting (when closing Mempad or opening another file) and can optionally auto save every 4 minutes. Also creates automatic backups.