We'll keep this short so you can get back to work
Keep your desk and your files organized to avoid wasting time shuffling through piles of paper.
Go through your inbox at the beginning of each work day. Either throw away, file or follow up on each item.
Prioritize a list of the tasks you need to accomplish that day.
Delegate tasks to co-workers and assistants if possible.
Finish one task before you go on to the next.
Have someone else answer your phone if possible. Give instructions about calls you wish to take and those that can be returned later.
Communicate effectively and plan carefully to make sure a job is done properly the first time around.
Schedule time when you'll be available, and let colleagues know, to avoid constant interruptions. Close the door if you need to.
Take breaks. A short walk or quick lunch away from the office will increase your overall productivity.
Before leaving for the day, tidy up your desk and make a short list of projects you will need to do the next day.
Try not to take work home. You need the break.
Determine when you have most energy in a day and tackle the most important or most difficult tasks at that time.
Recognize that certain days (usually Monday or Friday) are more hectic than others. Be realistic when scheduling those days.
Exercise and a healthy diet boost your energy level and increase your productivity.
If you get completely snowed under, hire an assistant from a temp agency to get you through the crunch.
Avoid regularly going out for long lunches with colleagues or clients - large meals make for unproductive afternoons.
Beware of time-consuming habits such as procrastination and indecision.