Be Prepared
If there's never been a time in your office where you've had to deal with a medical emergency, you are lucky. But what if that changes tomorrow? Will you be prepared?  

Cut Staff?
Is this a concept you've considered in this time of economic frailty? Is cutting staff your first knee-jerk answer to reducing your overhead? 

Not sure about delegating tasks?
Start by asking yourself...What tasks can I delegate? Not everything can (or should) be delegated. Carefully select those jobs that can be quickly taught and which you are personally comfortable letting go of.