So not bathroom related tasks, but more like some arbitrary thing you must and always do daily.
For me, I watch Anton Petrov’s daily white paper summary with dinner since some time in 2018. Even when New Pipe is down, I hit up Vimeo or Odyssey to watch Anton.
Open the blackout curtains so the bedroom isn’t dark all day. They’re only closed while I sleep (or try to sleep, they typed whilst lying in bed in front of closed blackout curtains).