When I start preparing for painting in the studio, I always tear a number of paper towel sheets and fold them into 4. The number of paper towels I tear off the roll will always be a prime number (usually 7 or 11). It’s something I started doing a long time ago and now I always make sure the quantity is a prime number.
Do you do (or avoid to do) typical things when painting? Things that smell like superstition?