You can take advantage of this phenomenon to snowball small actions into bigger ones, too. To get into the habit of working out, I started going to the gym everyday. I didn't work out everyday, but the act of going out of my way to be at the gym lent me the motivation to actually work out more often than not.
I now get to the gym (or some form of exercise) 6 days a week. That was entirely because I made the decision to go to the gym and watch some YouTube.
Then I’d end up staying 90 mins but I’d get my 50 min workout in with a lot of long breaks! Then things started becoming a habit but I still have many days where I just watch YouTube at the gym lol