I think it depends on the top. If it is a noticeable print or design then people are most likely to remember it. If it is a more "standard" top, I would recommend wearing it with different pants or skirt and using new accessories. You can try different jewelry, a light jacket like a blazer or cardigan, or even a scarf to change the look up so that it won't be as noticeable to co-workers.
I have to caveat that if you are wearing the shirt on Monday and you will not be seeing any of the same people from Friday (if you are traveling or taking the day off from work) then go for it!