The Zetabyte Universe

I remember buying my first IBM PC. The year was 1982 and the cost was about $4000. It had 256KB of RAM and a 5MB hard drive. It was FAST and the hard drive space blew me away. I couldn’t figure out how I would EVER use all that space! 
So here we are 28 years later. I am writing this on a machine with 4GB of RAM and a 100GB hard drive. I constantly complain about how slow it is and how squeezed I am for space.
I remember buying an exabyte tape drive. . . when someone explained to me that Exabyte was a unit of measure I couldn’t even grasp the concept of anything that big. That tape drive could not store a terrabyte.
In 2005, when we bought a terabyte RAID system for our company storage it seemed like overkill.  You know, how would we EVER use all that space?  I mean we are a small company. Today we have a 5TB RAID system and I can see that we are going to have to upgrade soon. 
In 1990, Young Minds’ thought about publishing a CD set that contained all of the data to found on the internet in 1989. The set had less than 100GB. Twenty years later the estimate amount of data on the web is 2.9ZB – that is zetabytes. I don’t know about you, but I am still getting my head around the idea of Petabytes.
And now this: according to the latest Digital Universe report on data in 2010 the volume of digital information created and duplicated in this year will reach 1.2 zetabytes!!
And the beat goes on – kilobytes, gigabytes, terabytes, petabytes, exabytes, and zetabytes and soon we will be talking about yottabytes.  Unfortunately, I CAN now grasp the concept of something that big!
Which brings me to overwhelming question -- how do you manage all this info?!