For me, it definitely does, but my situation might be unique (or close to it). I'm a nursing student and we have to practice on each other. This often involves close contact and partial disrobing (mainly just to a white t-shirt and our scrub bottoms). The scrub bottoms are white and leave hardly nothing to the imagination (everyone we wear, including our underwear, must be white). It would become quite obvious to my partner(s) if I wasn't packing. So far, no mishaps have occurred.
In everyday life, I usually pack out of habit and because it feels right. On the days that I don't for whatever reason, something feels missing more than usual.