Text Master is a text editor, looking like Notepad, that comes equipped with a multitude of tools and functions.
Some of the main features of Text Master are: it adds the time and date automatically, the background colour is configurable, you can select different fonts, encrypt texts, combine different lines together, delete whole lines, delete those duplicated lines, tools to look for and replace text, you can add filters to the searches, etc.
Also, from Text Master you can generate email lists, word lists, count how often each word is repeated, import images as text, convert between upper and lower case, order lines using diverse criteria, create statistics on the text, etc. Text Master is totally free.