use notepad as your notes diary

* Open a blank notepad file.

* write .LOG as the first line of the file, press enter.

* Save the file and close it.

* Double-click the file to open it and notice that Notepad appends the current date and time in the file.

* Type your notes then save and close the file.

* Every time when you are open that file, notepad will appens the current date and time in the file.Writes the notes then save and close the file each time. 

* This is your notepad diary.