Notepad (time/date) trick

This is the cool trick useful in scheduling our important notes in notepad.I guess this is not a newtrick but a cool trick for those who else are not aware of it.
1.open a blank notepad.
2.Then press "."
3.Then press LOG(upper case only)
4.press Enter
5.Type some text in notepad say "Hello world!!!"
5.save the file with some name and when ever you open the file, Notepad repeats the process, showing the time and date to the end of the file and placing the cursor below automatically
NOTE:you can also get time/date by pressing F5 key when you open the notepad .