First world issue, I know, but I hate furry teeth with a passion. In the midst of crisis communications, I quickly learnt to pack a toothbrush and toothpaste (I eventually just left a set in my desk drawer). Also for overnight conference days. One does not need to add unnecessarily to the grumpy when it can be solved with five minutes of brushing and squeaky clean teeth. It also works better than caffeine to give one a fresh energy boost. At least, for me it does.
Picture attribution: Toothbrush bristles by William Warby, Some rights reserved by wwarby. Copyright belongs to the creator. Use of this picture in no way indicates an affiliation with the creator of the image, nor does it indicate that the creator shares the views reflected by the text.