Like Ray Blaak, I would find most useful what C# calls "verbatim string literals" for strings that include the backslash character.  I think the "here" strings proposed clutter the lexical structure.

The C# spec is @" followed by a sequence of characters not including " and then terminated by ".  This allows for multi-line strings and is useful when specifying registry and file paths in Microsoft Windows as well as regular expressions.

Bob