You may have walked into the bathroom right after a co-worker "dropped the kids off in the pool". Worse yet, it's fully occupied and you have to wait. Space your morning coffee or snack out a bit and avoid that unpleasant, smelly experience.
Photo by redjar
Kyle Hart writes at Lifehack:
As a guy who loves coffee, I understand what my body needs to do almost every day after that first cup goes down the hatch. If this is you, simply change the pattern of your coffee (or tea) intake. Pour your first cup after the 8 am toilet troop has already gone, or drink your coffee during your commute so poop comes before other poopers down their dark roast at their desks.
You may want to think twice about drinking coffee too early, especially if you have a long commute. I've also found that you may want to avoid the post-lunch bathroom period. That minor detail could make your day a little easier to get through.