http://www.biggerpockets.com/blogs/538/blog_posts/2227-a-investor-s-or-real-estate-professional-s-database-management-system#comments Comments from 'A Investor's or Real Estate Professional's Database Management System' in Circle of Winners at BiggerPockets.com http://www.biggerpockets.com/blogs/538/blog_posts/2227-a-investor-s-or-real-estate-professional-s-database-management-system#c_1866 http://www.biggerpockets.com/blogs/538/blog_posts/2227-a-investor-s-or-real-estate-professional-s-database-management-system#c_1866 Good post. When I first began investing, it was easy enough to just keep a few spreadsheets. As I began to grow, I realized that I needed and all-in-one system to keep track of everything. I got Quickbooks and spent a lot of time learning it. Best decision I ever made. Now I feel like a real business man.