Microsoft Office is the most popular suite of business productivity software. It includes Word, Excel, PowerPoint, and Outlook. Although there are other applications available that perform the same functions, the Office applications are the de facto standard in the business world.

QuickBooks is the leader in accounting software. It is useful for invoicing, keeping customer records, and keeping track of your inventory. In addition, you can manage your business's finances in the same application. QuickBooks provides add-ons to handle business functions such as payroll and credit card processing.

Quicken is the ideal financial software for small home-based businesses that do not need the extra functionality of QuickBooks. You can track both personal and business expenses, and it is also helpful in preparing your taxes.

Stamps.com lets you print postage right from your computer so you do not have to run to the post office each time you need to ship a package. It integrates with QuickBooks and several other popular software packages.

RetailEdge offers an efficient way to manage your inventory and keep track of your customer sales. In addition, RetailEdge provides credit card point of sale functions.