Once a day is fucking crazy. No one needs to shower that much unless your working outside in dirt or have a really labour intensive job. If you working out too then it makes sense. If your just working in an office or some other white collar job, you do not need ot shower everyday. You just don't. Thats completely psychological. Once or twice a week is fine for me too.
No, its not. I feel sorry for Your coworkers.
I'm surprised that people are showering less than once a day. I personally shower twice a day, i just cant go to bed without knowing that i'm clean. I need to shower in the morning after sleep and i need to shower after i get from work, and i work in the office
When i stay at home for a full day, i shower once.