If you thought interruptions were a nuisance in the corporate world, ha ha! Wait 'til you start running your own small business. With the fate of your company riding on your shoulders, wasted time is by far your biggest enemy. Learn how to nip those productivity-busters in the bud while making a beeline for your goals.1. Use voicemail to your advantage.If you're in the throes of mapping out your business strategy and the phone rings, do you pick it up? If so, break the habit right now. Voicemail.