It isn’t often that I run across a new tool for small business CEOs that I can wholeheartedly endorse, but I’ve run across just such a tool in the last little while and I want to pass that on. ZipBooks is a free tool to manage your billing, expenses and time. It tracks everything you need to stay on top of your accounts receivable.

There are a lot of invoicing tools out there where it starts to feel like a flea market–lots of free and cheap options but you can’t quite be sure of the quality until you bring it home.…