For me streaks are a double edged sword; if I break a streak then the stat becomes a disincentive

Why not try a challenge for how long you can go without a shower?

Or just trigger a machine which dispenses a treat whenever “wet” is detected

♥️

i have a humidity sensor in the bathroom that turns the ceiling fan on, and the way that works is that it compares the bathroom humidity to humidity in other areas of the house, so it takes into account humid/dry days automatically

I just got tested myself so I might be in the same boat! Waiting to get the results

Here is my Automation:

alias: Update Last Shower Time
description: ""
triggers:
  - entity_id: binary_sensor.showering
    from: "on"
    to: "off"
    trigger: state
actions:
  - data:
      datetime: "{{ now() }}"
    action: input_datetime.set_datetime
    target:
      entity_id: input_datetime.last_shower

You need to create a ‘DateTime’ helper called “Last Shower” This is where the last shower time will be stored (and can be changed)

You need a ‘Statistics’ Helper too. Call it “Average Bathroom Humidity” and base it on whatever humidity sensor you have. Make it “average linear” then set Max Age to 1 hour. (leave other options default)

Make these template sensors too:

Template Binary Sensor called “Showering”:

{{ (states('sensor.bathroom_sensor_humidity')|float - states('sensor.average_bathroom_humidity')|float) > 9 }}

Template Sensor called “Time Since Last Shower”:

% set diff = now() - as_datetime(states('input_datetime.last_shower')).astimezone() %}
{% set days = diff.days %}
{% set hours = (diff.seconds // 3600) %}
{% if days > 0 %}
  {{ days }} day{{ 's' if days > 1 }} {{ hours }} hour{{ 's' if hours != 1 }}
{% else %}
  {{ hours }} hour{{ 's' if hours != 1 }}
{% endif %}

Let me know if you hit any snags!

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