Not at UNIT. There I usually just wore a lab coat. Over my normal clothes [A hasty addition. She's used to Jack... Jack who would give her an leer if she "just wore a lab coat,"] Black fatigues and a red beret if I had to be in uniform.
With the Doctor, I only dressed when we were stuck in a time period. So something almost exactly like this in the 60s and then clothing proper for 1914. A maid's outfit. [She made a face as she said it. Dressing as a maid had been particularly mortifying, especially a black maid in 1914.]