Dell Small Business offers its 5.1-lb. Dell Latitude 3540 Intel Haswell Core i3 1.7GHz 15.6" Laptop for $549 with free shipping. That's $11 below our mention from a week ago and the lowest total price we could find by $128. Features includes an Intel Core i3-4010U Haswell 1.7GHz dual-core processor, 15.6" 1366x768 LCD, 4GB RAM, 500GB hard drive, DVD burner, 802.11n wireless, 4-cell battery, and Windows 7 Professional 64-bit (a Windows 8 Pro license is included).
Before you send in your tax return, double-check that you haven't made one of these mistakes that can trigger IRS scrutiny.