I've done a 20-minute free video for you, online, that will explain how cash flow works. Please take a look at http://timberry.com/videos/. It's vital, too. Take the time to get this right, or bring on a team member, because cash is what runs your business.
Tim Berry is the chairman of Eugene, Ore.-Palo Alto Software, which produces business-planning software. He founded Bplans.com and wrote The Plan-As-You-Go Business Plan, published by Entrepreneur Press. Berry is also a co-founder of HavePresence.com, a leader in a local angel-investment group and a judge of international business-plan competitions.