I thought it would be good to point out...
My account currently has a 350MB (yes, that's MB) disk space cap on it. My usage is currently at about 348MB. Luckily, the cap is SUPPOSED to be 550GB (that's right, GB instead of MB). I've put in the appropriate support ticket to have this issue resolved. However, in the meantime, there may or may not be some interesting issues arise between now and then.
Have fun!