my girls wear a collar for id purposes only. It was getting them used to the harness that was the hard part. I started by letting them wear a harness while I was at home. None to sya the least we have had a lot of chewed harnesses. So make sure u buy some back ups. : ) they will eventually get used to the collar. We never take ours off just in case. As for clothes give it some time but some dogs just do not like them. However when its freezing outside they will eventually get used to sweaters and coats. Congrats on your girl |