I won't go on about how awesome Google Calendar is. All I'll say is, it's so awesome that sometimes you may find a need to back your calendars up just in case they might die (especially if you're going to be fiddling with sync programs or trying to fix messed up app's, etc.).
GOOGLE has offered a wonderful feature to do this without you having to do much!
Presuming you're signed into your Google Account, just go to https://www.google.com/calendar/exporticalzip and the ensuing ZIP file will have all of your calendars saved as separate ICS files! Nothing could be easier!
Note this will only give you access to calendars to which you have permission to make changes and manage sharing. It will not export calendars in your Other Calendars.
Thanks to this page for the hint :)