I work from home, and we have a diverse social group. I could easily wear the same outfit for a week straight, or longer, and nobody but immediate family would know. I have never done this but I have repeated same outfit 2X's in a week. What happens in reality is that I need the creative challenge of coming up with something new, so I rarely wear the exact same outfit twice in a season (though I do wear similar silhouettes/formulas all the time, or nearly same outfit with one or two minor tweaks, like different scarf or shoes or purse or coat).
When I worked in an office, ironically, I much preferred having a schedule.. a menu of sorts.. one week or two weeks worth of "tried and true" outfits I could cycle through. Outfits I didn't have to think too hard about, early in the morning when I'm brain dead. Because I am SOOO not a morning person. I just wanted to pull something on last minute and be done with it.
Ultimately I am also on the fence: there's a place for variety. There's a place for repetition. It all depends on my mood for the day -- I'm a mood dresser. Today was a day when I craved "uniform" ... so I went Viviene Files style, and pulled out a simple LBD, paired with tall chocolate brown boots. Then for variety I added a patterned scarf, and snake skin MK purse. And a white pleather jacket. And I was done. It didn't take all that much thought.