Questions says it all ^^
I've got 32,35GB right now, of which 15GB was earned through the Dropbox.com/spacerace, and I have received 25 referral bonuses. All other space is from get started/social network posts or the 2012 Dropquest
I only use around 6% of it though, but it's growing slowly since I'm archiving a lot to it.
I'm very curious to see what's popular out there nowadays. I used to use Windows Live Mesh but switched to Dropbox since it went out of beta - and everyone at school uses Dropbox.If you don't use Dropbox feel free to post whatever you use, what you (don't) pay for it and how much space you get.