5 minute tasks
One of the biggest learning in my ongoing parental leave is lot of things take 5 minutes or less. Lot of the household chores, I mean. For example, it takes couple of minutes to put a load in the washing machine, it takes less than 5 minutes to dry those clothes. It takes less than 5 minutes to fold those clothes (depends on how well you want the folded clothes to look). Less the 5 minutes to make an omelette, carry out trash, and the list goes on.
One might argue that these are not 'needle-movers' or impactful, these are just mundane tasks. I disagree. In a family setup, these are tasks that consumes a lot of cumulative time and most importantly one partner assumes the other would do it and vice-versa. These small tasks are the real stress points that might eventually lead to arguments when left undone.
The way to apply this in your life is only a matter of figuring out what are the tasks that need to be done and DOING IT. Sometimes it might not even be a planned task, for example, on the way to the kitchen you might see an orphaned coffee mug at the center table or dining table, just pick it up and place it in the kitchen sink.
Side note: It took me this parental leave to figure this out, because our newborn is a light sleeper, he wants someone sitting beside him. So all I can afford is multiple 5 min breaks.