Did you know that by adding a .mailtracking.com at the end of a recipient's email address, you can track if the email has been read, how many times, for how long and even if it has been forwarded and to whom ! Eg : When sending an email to james@abc.com, just change it to james@abc.com.mailtracking.com and that is all ! All tracking information is sent to your email address automatically as and when your email gets read or forwarded. These guys are just so cool ! You may also visit them at email tracking website.
If you use Outlook for your scheduling, you should use this little program, it shows your appointments and tasks every time on your desktop. Your OL-Calendar are too many clicks away, to stay your appointments in view, that's one of the reasons i made this customizable DesktopCalendar for you.