How to manage all aspects of a business as a sole proprietor?

I use a live answering service so I can get an email transcript, it streamlines my response time to clients and prevents losing leads that are time sensitive. 

I also hired 2 extremely part time office admins that work from home around their full time jobs. They get paid $28/hr and only do a few hours each week, it's easy money for them to create quotes, make client files, etc. and frees me up to do more important stuff.