As you surely know you can get a total of 10 GB and 250 MB space in your dropbox without paying:
– 2 GB as a start (Link)
– 8 GB (16 GB as a student) for inviting 32 friends through referrals
– 250 MB (500 MB as a student) for completing 5 out of 6 steps in the “Get Started” tab on the frontpage
Further more you get get another 640 MB for social media referrals (Free Extra Space).
But the best, and with a clever trick, the simplest way to get 5 GB extra space is the following:
Install the dropbox beta version (Dropbox Beta 1.3.15) and upload the file in the Link via your mobile device. That’s it!
Stay tuned! 🙂
