Use Notepad as dairy
1. Open a blank Notepad file.
2. Type .LOG as the first line of the file, followed by an 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 following line.
4. Type your notes and then save and close the file.
5. Each time you open the file, Notepad repeats the process, appending the time and date to the end of the file and placing the cursor below it.