1. Open a blank Notepad file 2. Write .LOG as the first line of the file, followed by a enter. Save the file and close it. 3. Double-click the file to open it and notice that Notepad appends the current date and time to the end of the file and places the cursor on the line after. 4. Type your notes and then save and close the file. 5. Reopen the file, you will see current date and time again. by this trick u can also use ur notebook as a personal diary.