She would go through my closet and pick out things that she found questionable and hold them up. I would respond with either "Kick it" (which is self-explanatory) or "Keep it" (which is also self-explanatory and meant that I was overruling her yellow flag). She occasionally asked "Really??" and I sometimes changed my choice upon reconsideration.
We've kept up the tradition over the years. I find our tastes judgment doesn't differ that much and it provides a good opportunity to clear things out that need to go.