What the cost of interruption

I noticing that I tend to think, I just wanna check the weather, or I just grab my daily reward. I can notice same ideas in supermarkets, and almost everywhere.
The idea is simple make the first step as effortless as effective, productive, rewarding as possible. Then when I do it everything changes, it becomes much harder to resist the following steps.
I usually call it the domino effect, I maybe can stop on first or on second, but it much harder to stop when the domino progress. The good news that same mechanics can be used in reverse.
I noticed that small habit in the morning can change entire day in much positive direction.