Who has to look? It's a way of life. I base my computer passwords on model numbers. They make sense to me, hence are easily remembered, but not so for anybody at work nor to the software that throws out common pairings of letters.
The medly "Aquarius-Let The Sun Shine In" from Hair is easily associated with the wash-dry program of a washer-dryer combination, if you give your mind permission to wander around in Applianceland. The slow opening measures of "Homeward Bound," by Simon and Garfunkel are almost the same tempo as the agitator strokes in pre-06 series Maytags.