sharing a calendar profile between two computers

[H.S.]

Hello,

I am planning to use lightnight (or sunbird). But I would need to keep
the appointments in sync between my home PC and lab computers. In my
home, I use Linux (Ubuntu) and in my university, we have Windows as well
as Linux computers.

I was wondering, how do I keep my appointments in sync between the two
locations? Can it be as simple as copying the relevant files from my
profile to a usb stick? At the end of the day, I can take that data to
my home and modify/edit it and then take the new data to university the
next day. Is this is too simplistic and is there are better method to
achieve this objective?

thanks,
->HS