Another discovery today, courtesy of Google finding Rik Robinson's Blog is String.TrimStart() and String.TrimEnd().

To trim a leading slash of a string or path use:

myString = myString.TrimStart(new char[]{'\\', '/'}); 

To trim a trailing slash of a string or path use:

myString = myString.TrimEnd(new char[]{'\\', '/'}); 

I had previously been using a much more long-winded approach. Cheers Rik for bringing that to my attention.