Sorry, I know this is a cop-out, but male or female, with a Yorkie,
you can't go wrong! I have two male dogs now. My Schnauzer has never marked inside the house, but outside...Lord help my shrubbery!! But, our yard isn't fenced so other male dogs are in and out of it. Bo was neutered at 6 months and has never marked in or out.
I love love love my mommy's boys!!! As for clothes, here are some things I have my eye on for Bo...there are more and more things out for boys all the time.
http://www.yorkietalk.com/forums/sho...ighlight=denim http://tinkerbellscloset.com/Browse_...Jersey_Harness