Somewhat surprisingly, the Windows Store already offers a bevy of niche apps to fill your business's needs. And I'm not just talking about enterprise-class apps like Rackspace Cloud, Citrix Receiver, or Microsoft's own Lync, Yammer, and Dynamics Business Analyzer. Beneath the big names are a host of apps that are arguably more useful to small businesses.
From HoursTracker to Invoice360 to Mileage And Receipt System to Google Analytics Live, the Windows Store has many basic business functions covered, albeit often in a highly simplified fashion. Dive into the store's business and productivity sections, and you might just be surprised at what else you'll find.