A few minutes at the end of the day: what did I receive, what did I give, what did I notice? In the style of gratitude, Naikan, the Stoics or a backward review; what you write stays on your device.
Closing the day by taking an honest account of it is a practice shared by many traditions that never knew of each other. Sufism calls it muhasebe-i nefs, self-accounting: al-Muhasibi and al-Ghazali advise reviewing the day in the evening and setting an intention in the morning. In Japan, Yoshimoto Ishin's Naikan asks three questions; Seneca questioned himself about his day every evening; Rudolf Steiner suggested watching the day backwards, like a film. The Evening Review brings these four styles together in one place.
The best time is the quiet moment before bed. If you end the day tired, the Gratitude style is enough; for a deeper look, answer Naikan's three questions once a week with one person in mind. Practised regularly, it makes it easier to see your own habits and reactions.
Self-accounting (muhasebe-i nefs) is described in detail by al-Harith al-Muhasibi (d. 857) and in al-Ghazali's Ihya. Yoshimoto Ishin developed Naikan in the 1940s; Seneca describes his evening examination in On Anger (III.36); Ignatius's daily Examen and Steiner's backward review belong to the same family. Research supports a small but consistent benefit of gratitude journaling for wellbeing; studies of Naikan and Stoic practices are more limited. This is not a treatment but a habit of awareness.
Self-accounting is not self-blame; it is seeing what happened. If Naikan's third question ("what trouble did I cause others?") brings up guilt, skip it; if you have experienced abuse, do not answer it at all. If you feel a heavy weight, use the Safe Exit or talk to a professional.