If you want to get one thing done at work today, get it on paper. Better still, write it on a sticky note and place it where you can see it, to remind you of the task.
17 Small Actions That Will Make Your Work Day Incredibly Meaningful
Thomas Oppong

Better put it on calendar at specific time. Having it on calendar and following it religiously does wonder over long period.

You do the things that matter, you look back and improve and probably change the world.