Everyone hates it when you put on deodorant in a rush and then throw on your black dress or bridesmaids put on their dresses and get those stubborn white stains from their deodorant on the arm area of the dress. One trick I have found is using a used laundry dryer sheet. It can quickly whisk off the white stain on the dress with a little light rubbing. I carry one in my emergency kit and every wedding take a new one with me for potential mishaps.
One way to avoid this is to put on your deodorant 15 minutes or so before you put on your dress so it has time to dry. Also, try and use the "invisible" deodorant on special occasion days.
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