Give me some DIY induction methods!

So, heres the thing. My babies are late, always. 1st was 42 weeks, 2nd was 40+5d and right now I'm at 34 weeks. Not planning to use any of this until I get the green light from my OB but she has a vacation scheduled right after my due date and we both want her to be the one who delivers my baby so at 39 weeks we are doing a stretch and sweep, but starting at about 37.5-38 weeks I'm going to start home induction methods because I am trying to avoid pitocin as much as I can. So how can I make my body as ready as it can be to go into labor when the time comes? I have spent 24, and 30 hours in labor so I dont wanna do that either. What works? What worked for you, or your friend or your mom?? Help a girl out here!?