I am using Outlook and an online calendaring system, so I "invite" myself
back and forth between the two to keep everything in sync. When I create an
appointment on my outlook calendar, I invite myself at my other email address
as an attendee, and then the entry appears on both calendars.

Is there any way to *always* add my second email address as an
invitee/attendee, so that I don't have to manually invite myself and type in
my email address every time? So, for all meetings and appointments, I'd have
two attendees, me at outlook, and me at my online calendar.

thanks...