When I had my Yorkie, Lily it was very hard to potty-train her. Not to mention that when I was trying to potty train it was middle of winter and the snow was too highand too cold for her!! I bought those potty pads b/c she was so little and put them in the bathroom corner ( big bathroom). She got used to going on those. It would be really funny to see her get up and go to the bathroom to go to the bathroom

Sad to say though I dont have Lily anymore but I know she probrobly still is trained to go on the pads.
You will have to change them often though. Lily would not go on them if they were dirty