1. You need to determine what format you will ACTUALLY use: Planner, smartphone, online service - but, You do need a to-do list ... and one that is easily accessible.
2. Review it twice a day. Where are You ... progress-wise?
3. Organize your must difficult challenges for the early morning hours - allowing less opportunity for distractions. Break the task down into daily tasks - doing a little bit each day. Sometimes you may have to get up early to complete some of your tasks - say, before telephone calls start occurring!! You never know what is needed of you when the phone rings - and You say "Hello". Have your most important tasks completed first. It will take a little discipline; but, you will be glad you developed it - when that unexpected request is on the other end of your phone!
4. Build in time for interruptions. If they don't occur - keep on with your list. If they do - you have time to handle them {that is a great feeling}.
5. Know when you need to shut the door and get a 'single' task completed {the budget; bill paying; the report due in 3 hours; whatever you really don't what to be interrupted on - once you start}. Don't hope that you won't be bothered - take steps to accomplish a specific task you need to do. Close your door, put up a sign, "Do Not Disturb for 25 Minutes" - Project deadline to complete.
6. Be decisive.
7. Learn to say "No".
8. Ask for assistance.
9. Take some time for YOU - go for a walk, exercise class, tend to your garden; or, start one, knit, crossword puzzle, play "Angry Birds" - take time and de-stress. Then, get back to the list.