There are plenty of cloud storage options out there which offer some initial amount of free space -- including Dropbox (2GB), Google Drive (
5GB 15GB), Box (5GB) and Microsoft Skydrive (7GB). While these services usually provide additional free storage via referrals and special deals (bundled with device purchases for example), Microsoft is doing something different with Skydrive by gifting students an extra 3GB of free space for one year. If you have a valid .edu email address you can visit the URL below to receive a free storage code. The offer is limited to one per person and the code must be redeemed before December 31st 2013. It's unclear what happens to your data after the year's over but it presumably remains available in read-only form. Considering the price of tuition, this deal isn't quite as juicy as getting 100GB of free space for two years on Google Drive with the purchase of a Chromebook -- still it's a no brainer.
Update: To be clear, Google's now offering 15GB of free storage shared between GMail, Google+ photos and Google Drive. Also, Google Apps for Education provides 30GB of free space for these services.