Hi Jacky, Welcome to Yorkie Talk! Shows how responsible you are by asking questions. And very good intentions you have for your yorkie. Nothing wrong with purses, we all have them. Though mainstream media sees them (yorkies) as fashion accessories it's obsious we all love and care for our babies.
Ears up or down is totally up to you and you're dog, they're gorgeous either way, that's a promise, I like up myself.
Dog food, Dry is best for their teeth. Premium only (that's the best of the best). There is a list of different brands that are really good. Someone should come along with it, I don't I have it sorry. Find the search button, it'll be your new best friend for info. It's up top, on a bar.
Definitely a harness when walking coillars can crush their tiny trachaes.
And don't forget, buy some really cute outfits |