My uncle saw me one day in my work clothes, and asked if I just got out of church. Not sure if it was because the dark grey pants with the permanent crease, or the white long sleeve button-up shirt. I typically don't wear the long sleeves though. My everyday work shirts are white short sleeves with the button-up collar. Still looks just as professional, and doesn't cause a sweat fest during the warmer months.
Note: I know that's not a white shirt I'm wearing in my avatar... The blue long sleeve was just on that day to protect me in the dust storm I was dealing with in a client's backyard.