Jab Jab Ftilt WORKS a lot better then you would think. I've been using it a lot lately. You'd all do well and take A2's advice here and use it. It's easy to preform and works very well.
Also, for the ledge talk, I do a lot of Control Stick Away from the ledge, Cape, SJBair/Dair/Pivot Fireball to get back on. Also, if they come out for a stage spike you just Cape, then Uair and it'll kick them out and let you recover fine. Pivot Fireball gets rid of RCO Lag and I believe Bair and Dair do as well. Of course this gets predictable if you do it too much so add this to your ledge game along with the other stuff mentioned here, Starked.