I Am Become Darth, Destroyer Of Worlds

In The Clouds

Quite a bumper crop of free cloud storage this month (week?)

Dropbox offers up to 3GBs of free storage, if you tell your friends
Google Drive, the long rumoured service, finally goes live with 5GBs
SkyDrive finally got their act together and released 25GBs days before Google

My music is in Google Play,
My mobile photos are backup up regularly via Dropbox and Windows Live Mesh

What shall I keep in the massive 25GB SkyDrive that is accessible anywhere online?
(This would have been so useful back when I was in school)