The problem: Sometimes it is difficult to decide about the current priorities.
In your life you are playing a lot of roles, for example lover, father/mother, son/daughter, photographer, co-worker and many other. There are a lot of locations and situations where you come to action. World becomes more complex (at least it seems to - maybe only because there is more information flowing ;-) ) and it seems that there are plenty of things that should be done.
The reason: The overwhelming amount of to-dos, ideas and information.
The mass blocks the view to the main things in life.
The solution: Think of the day as it would be the last from time to time.
Some years ago I read somewhere that one should live every day as it would be the last. I thought about that but I came to the conclusion that this is not adequate because there are several realms in your life that require long term view and planning. For example to evolve strong relationships or if you are going to marry you need to create a feeling of confidence and constancy. Or even in your work for your customers it is important to have continuity and stability. Because of these reasons it is important to make long term plans and do long term thinking. And it also would not be realistic to see every day as the last because in most cases it is not true that the day is your last.
However, some day will be the last or something else big happens (an accident for example) that changes the situation and your abilities drastically and then you might ask yourself if you set the right priorities in your life.
It is adequate to think "as it would be the last day" from time to time. At least when you are not sure about the priorities to set for the next day or next week.
Related post: Between short and long term goals.