well I dont know how many users know about this, so here goes:

Open up Notepad, and on the very first line, before anything else is typed, type:

.LOG

exactly like that, then Save As, and save it as Log.

Now click it away.Next time you open it up, it will put in an entry with the time and date.

It shows the Time and Date with me, but some people say it only shows the Date.

Anyway, hope this helps some people.