The urge is still there. I just sort of tell it "No" and move on to the next thing. I leave the part of the house where the "supplies" are kept. I breathe. I tell myself "that moment is over, now I'm doing this...".
I have PTSD and movie theaters make me panic. I was taking my kids to a movie with a friend of mine and her kids a few months ago, and I told T I was scared I wouldn't be able to handle it. He said that when the scary thoughts came, to just let them pass by in my mind - to not grab on to them. I thought "that is the stupidist thing I have ever heard!" - but I tried it, and it actually worked. I couldn't believe it. I guess this is kind of the same idea.
I don't know if it will work forever, or if it would work for anyone else, but I am really happy to be SI free for a couple of days - I was really struggling for a bit there.