If you have metal rulers and squares that are hard to read because rust and grime have filled the indentations, follow this simple trick:
- Brush correction fluid across the engraved marks.
- Let it dry, then clean off the dried fluid with fine sandpaper.
The tiny marks will now show clearly, and you can skip buying a more powerful pair of cheaters. Thanks for this tip goes to Carl Anderson, a guy who really rules. In the meantime, here’s another handy measuring tip: an in-hand notepad right on your tape measure.