Your new puppy wants to please you, but doesn't know how. It's your job to communicate to your puppy how it should behave in a way it can understand. Without proper guidance, your puppy will likely chew your personal possessions and eliminate where it pleases, simply because it doesn't know any better.
Millions of dogs are euthanized each year because of behavioral issues, issues that could have been prevented with proper training. Retraining an older dog takes much more time and effort than training a puppy.
Instructions
House Training
Keep your puppy confined to a crate or play area. If you're using a play area, make sure your puppy has a place to relieve itself (newspaper or puppy pads) in the farthest corner from its bed.
Short-term confinement using a crate allows for faster and easier house training; you're better able to tell when your puppy needs to relieve itself and the puppy is more likely to wait to eliminate until it is outside. With a play area, the puppy is more likely to use the toilet.
Take your puppy outside every hour, as well as after meals and naps, and instruct your puppy to eliminate.
Praise your puppy when it does as you instruct, and also offer treats to further reinforce appropriate behavior.
Chew Toy Training
Purchase a variety of durable chew toys for your puppy. You might want to purchase a few extra chew toys so you always have spares on hand.
Stuff the chew toys with dry kibble. You can moisten kibble before filling the toy and put it in the freezer or spread a little honey or peanut butter in the toy before filling it with kibble.
Keep your puppy supplied with a few chew toys at all times, especially during confinement.
Feed your puppy through its chew toys instead of a bowl until it develops a steady habit of playing with chew toys.