Stepping into the event horizon

Okay, so. Admittedly with a bit of reluctance, I have finally made the leap to AO3.

(Yes, it's a fabulous resource. Yes, I have a problem or two with it. LJ's situation, and the disappearance of two regular archives where I had my fic backed up, played a role in the decision.)

Any suggestions from those more experienced with the archive? The one about "don't upload umpteen fics per day, without even bothering to include summaries" doesn't need to be given. :)