If you're anything like me, you'll still be getting the hang of String.Format ever since sprintf was removed from our toolbag. So, here's a tool to interactively play with a format specifier to see how it formats a value that's been parsed in each of the common types. [[posterous-content:CyoFdhjuFpmwstAJFzdF]] And here's the link to the often-hard to find MSDN format specifier references: Standard numbers Custom numbers Standard datetimes Custom datetimes Here's the exe: stringformat-exe Here's the source: stringformat-source

Thanks for reading! And if you want to get in touch, I'd love to hear from you: chris.hulbert at gmail.