I will admit when she was still in that small puppy stage we put her in cute little outfits, but a lot of that was in the winter to keep her warm. She had the prettiest little Christmas dress one year too.
Now we just have her trusty winter coat, and she needs that. She shivers when she doesn't wear it, and she adores her coat. She gets all excited when she sees it!
Her first year we tried the Halloween costume idea, and it blew up in our face. She was supposed to be a bumble bee for this doggy scavenger hunt, but that meant putting something on her head, and we learned pretty quickly her head and paws will never have anything on them for long.