Take care not to leave smudges on the answer sheet.
Use only printers that produce neat, readable text with no stray marks or smudges.
Distant and faint gamma-ray burst afterglows will appear as tiny smudges of light even to the powerful UVOT.
Dark mascara gives definition, but avoid harsh eyeliners or thick mascara - blobs and smudges will be magnified too!
Here, in gray smudges in the gravel spanning five millennia, is the essence of Heathrow's story.
