- When you’re counting, use “fewer.”
- When you’re measuring, use “less.”
Unlike this writer (or editor; I’m not sure whom to blame).
After her death, she was exhumed no less than three times and found to be perfectly intact at each, which makes it seem strange that the lovely face and hands that are so famous are actually made of wax.
Do a search for less or fewer in the upper right corner to find semi-exceptions to this rule.
Here’s a picture: