I'm considering switching from Entourage 2004 over to iCal, and so I see that they have the option for multiple calendars. The usual justification for this is that it allows you to have a calendar for "home", and a calendar for "work", etc. but I don't see what value that provides. I mean, if I have a meeting or appointment today at 2:00, does it really matter whether that's on the "home" calendar or the "work" calendar? So my question is: Do you use multiple iCal calendars? If so, why? What are you getting out of that configuration that you wouldn't get out of just one "universal" calendar?