It's pretty easy to deal with the no showers. I showered at home and then I just brought my face soap (Cetaphil), hair gel, a towel, and deoderant and kept it at work, along with a brush. I used the regular soap from the rest room sink and washed the pits and anyplace else that felt sweaty. I washed my face and completely wet my hair (it's short) and slid some gel on it. Then I did my make up. The whole thing took about 10 minutes. If I planned on commuting in 2 days a week, i would bring all of my clothes on Monday and my lunches.
So, it takes some planning, but it's very doable.