Dressing alike at work

This past week, everthing I wore matched someone at work this week...I was either a twin or triplet. This was my observation at the office this week:

Monday: Mark(Analyst)-Maroon dress shirt, black pants, black shoes
Me(Accounting)-Maroon turtleneck, black pants, black shoes

Tuesday: Carol(Executive to the prez)- white blouse, black vest, black pants, black heels
Me(Accounting)-white blouse, black vest, black pants, black heels

Wednesday: Jen(Construction)- Grey top, black pants, heels
Me: Grey top also v-neck, black pants, heels

Thursday: Mark(Analyst)- Black top, black pants
Summer(co-op)- Black top, black pants
Me: Black top and black pants

Friday: Fabio(Land Eng)- Brown dress shirt, blue jeans
Me: Brown top, blue jeans

Other observations from others at work: M, stop wearing what I'm wearing...wearing identical colours twice a week is a bit much. Brian said,"What do you guys do? Call each other in the morning and ask what you're wearing?" I said,"Nope, this is all by chance" Each person that wore the same colours as I was all just by chance.