Teach your dog that the crate is a warm, inviting place. Never use the crate as punishment to have your puppy "kennel up." Have a family meeting and state these are the words we want to use, make a few copies and place around the home. Puppies, like children, learn fast when they know what is expected of them. Treats, such as puppy biscuits and string cheese, can be thrown into the crate with the command. If your puppy is all set, fed, let out and just wants out of the crate, we use a spray bottle and command "no bark" while showing them the bottle. If they continue, we spray. A puppy needs to learn to calm themselves; if not, separation anxiety and other destructive behaviors can arise. Remember, a crate is a home for the puppy or dog so keep it clean with fresh water (hanging water pails can be bought at revivalanimal.com or Tractor Supply). They will enjoy their crate if it is a positive experience.
But be careful: a young puppy might pull things through. Never put an expensive pet bed in the crate. It's alright to have it around the home and possibly in the crate when the puppy is older than a year and you know they will not shred it and possibly eat the stuffing. These pet beds work well in a visible area. There you can monitor that it is used appropriately.
All that needs to go into a crate is newspaper and an old towel or blanket. The towel or blanket should never be more than 1.5 times larger than the puppy. New crates come with a cage divider--use it to make the living space about two times the size of your puppy. Remember, dogs are den animals and den animals do not like to eliminate where they sleep. If an accident does occur, simply wash or throw away the towel or blanket and roll up the newspaper and dispose of it. Spray the crate with odor remover such as Nature's Miracle or Odor Ban. This helps take the smell out so the puppy doesn't want to eliminate there again. Never yell, hit or scold for a past mistake, the pup will not associate what they did with your disapproval. If you catch the pup in the act, make the "ach" high pitched sound I taught you. This generally is enough to deter any unwanted behavior.
Crates are a major safety concern for the car. Place it on the seat so the pup can see you, or in the back. Talk often to your dog or sing songs with their names in them like I do. The sound of your voice will calm them.