Ordering of expressions

[DrD]

Would it be practical to enhance the expand() command to include an optional vector of variables?

expand((x+y+z)^2); // ==> 2*x*y+2*x*z+2*y*z+x^2+y^2+z^2

reorder(expand((x+y+z)^2,[x,y,z])); // ==> x^2+2*x*y+2*x*z+y^2+2*y*z+z^2

[Suggestion for enhancement]
expand(Expr, [Variables]); // Enhancement: (optionally), include result reordering.

-Dale-