20 Things You Should Never, Ever Share

19. Bar soap

You can share soap because it cleans itself, right? Wrong! The Centers for Disease Control and Prevention advise using liquid soap instead. Meanwhile, cosmetic dermatologist Neal Schultz has revealed in a 2014 Medical Daily article that bar soaps don’t dry out completely. And, consequently, this can “[lead] to an accumulation of bacteria, fungi and yeast that can be passed from person to person.” Nice.