This week a client made me aware that links in the top navigation and in the quick launch (from SharePoint 2010) cannot be opened in a new tab from the Right-Click menu of Internet Explorer. If you try to do it, the option is not available.
Often 3.20 days or 6.05 days can cause confusion by your readers. Are referring to 20 hours, or a fifth of a day? You can solve this by showing the decimal part as a fraction.