Choose a well-ventilated crate that is large enough for your puppy to stand up, lie down, and turn around. Remember that your puppy’s crate will have to grow as he does, so purchase a crate that is appropriate for your dog’s expected full-grown size, and use a divider to make the crate smaller for the time being. Many crates available at pet-supply stores include dividers.
Never leave a puppy in his crate all day; he needs several bathroom breaks, as well as play and feeding times. Even though he won’t want to soil his sleeping area, if he is in there for extremely long stretches, he just might. (He can’t help it!) And if he does, it is because his owner has neglected his responsibility, not because the dog has misbehaved.
Puppies can begin very simple training starting as soon as they come home, usually around 8 weeks old. Always keep training sessions brief — just 5 to 10 minutes —and always end on a positive note. If your puppy is having trouble learning a new behavior, end the session by reviewing something he already knows and give him plenty of praise and a big reward for his success. If your puppy gets bored or frustrated, it will ultimately be counterproductive to learning.
Just as a child needs a caring parent; an athletic team needs a coach; your puppy needs a leader and a clear social hierarchy. If you do not take up the role of leader, your dog will; and you will end up with an unruly, disobedient dog. Many people try to win their new puppy's love by letting the puppy always have its way. Buckets of affection is a wonderful thing for most puppies, but it must be tempered with respect.