When was the last time you checked your daily routine and on going business strategy for the 80/20 principle? Chances are you need to review. From time to time we all loose sight of productivity and suffer from busyness.
The Pareto Principle as defined on Wikipedia - (also known as the 80-20 rule, the law of the vital few and the principle of factor sparsity) states that, for many events, 80% of the effects comes from 20% of the causes. 
Business management thinker Joseph M. Juran suggested the principle and named it after Italian economist Vilfredo Pareto, who observed that 80% of income in Italy went to 20% of the population. It is a common rule of thumb in business; e.g., "80% of your sales comes from 20% of your clients."
Quick right now, take a step away from your email, turn off your phone - kill all external distractions and look over your situation. What is bringing in 80% of your sales? What is taking up 80% of your time? Chances are they aren't the same thing. As the 80-20 rule goes, your profits are primarily coming from a small array of your goods/services. I used to do a lot of pet sitting with my dog walking company, but sure enough pet sitting made of 20% of DWNYC's income while pet sitting the dogs took up 80% (more like 95%) of my time.
Once you have isolated the activities, sales calls, errands whatever it is you waste most of your time on, and once you have identified what you get most of your sales through, commit to throwing out the former. You don't need it. Chances are in the first week of having that spare time you will find a way to increase sales in the 20% that makes up most of your income.
Go for what do you have to lose? thats right - stress and worry.