Funny trick with the toilets, becuase they still bother my son and he is too old to come in the bathroom with me and finding a family restroom isn't alway a possibility.
Post its. I use about a about 3 stuck together at a time but I keep a stackin my purse in a ziplock and I give my son a few before he goes in the bathroom. The world is full of things that trigger his OCD, I don't need he toilet to be one of them