Taking a shower. Similar to sunscreen, any other soaps, hair or beauty products can cause a cloudy buildup on your stone, or worse, under your stone—which is much harder to clean. Shampoos and body washes are a no-go. The same applies for your favorite scented lotion that you apply post-shower or that hair serum.
Black tie is the second most formal dress code and is typically reserved for evening weddings. Despite what its title may suggest, black tie does not mean you must wear black, although traditionally men should wear a black tuxedo and a bow tie. Black tie appropriate attire for women can be an evening gown of any colour.
The formal dress code is located somewhere between cocktail and black tie. For the ladies this dress code requires a short or long formal dress, a pantsuit, or dressy separates. For men, a dark suit, white shirt, and conservative tie is appropriate. Men can opt to wear a tuxedo if they wish, as the formal dress code is really another way to describe black tie optional.