In our short time with Lucy, she has made big progress with commands. She knew "sit "and we have really been focusing on "stay" and " leave it".
For stay, I have her sit while I slowly walk away. I then can say "come" and then she will come to me. We have increased the distance where I can be in another room out of her sight line and she still stays.
For leave it, I wanted to train her to leave alone an object. I started by holding treats right in front of her face and having her leave it. When she makes eye contact with me, she can have the treat. I also repeated this by having treats in the floor next to her.
These two commands have made meal time less crazy- as she gets very excited by food.