Working effectively and timely requires knowledge, skills, and experience on a day to day basis. If you are a multi-tasker, a systematic way of doing things should be in place. If you are working in an office, you need to prove that you can do the job efficiently.
Improve your skills, if your work entails a lot of computer works try to improve more to get more productive. Constant learning is for all ages and everyday is an opportunity to learn something new even if you think you are doing a routine work.
Do the task according to the deadline and importance. With all the things requires your attention, prioritizing is very important.
Keep a handy notepad or digital boards to write down your things to do for the day. Do not rely in your memory, write it down. It will give you a sense of direction and accomplishment.
Be hardworking but always remember that quantity and quality can be achieved if there is some space for recreation. We need to reboot in order to achieve greater results.