The mystics of Kabbalah did not just rule on large questions of Sabbath law — they drew a whole day of living around the smallest gestures. Here is a sample.
Geese, fowl, cats, dogs — do not handle them on Shabbat. In an unwalled town, leave pocket handkerchiefs and spectacles at home rather than carry them outside. Do not salt radishes in a bowl at once; dip each piece in salt separately and eat it that way.
After the Shabbat meal, sleep. Take a siesta. The letters of the Hebrew word shinah, sleep, form an acronym — Sheinah BeShabbat Ta'anug, "sleep on the Sabbath is a delight" (Isaiah 58:13). Before you lie down, recite the last verse of Psalm 90 and all of Psalm 91.
The greeting on Shabbat is not "good morning" but "Shabbat shalom" — "good Sabbath" — because Exodus 20:8 says, "Remember the Sabbath day to keep it holy," and memory begins with what you call it. Do not rise as early on Shabbat as on a weekday; the day is longer because you carry it slower.
Be careful with fur garments — not to pull a hair loose. Do not scratch your head or touch your beard vigorously, for the same reason. Do not wash your hands with salt or soap. Do not play ball.
None of this is a cage. It is a shape. The mystics believed Shabbat was a bride received into your house, and a bride deserves a house prepared in every detail — from the salt on the radish to the siesta after lunch.