Some people take Immodium, or Metamucil, so I'll let them chime in on that. (I never needed them.)
Try not to eat past 6 pm or so (might help), and in the beginning, thickening foods helped slow things down for me (potatoes, noodles).
And don't forget: Kegels. I Kegel'd like CRAZY in the beginning days. I think it helped.