Did you just adopt an adult dog?
General information
Adult dogs go through quite an adjustment process when introduced into a new home. Consult these many resources to help your new dog make the best possible start in his new life with you.
Dog-to-Dog Introductions
Housetraining Your Dog or Puppy
Inside Dog or Outside Dog?
Dog/Cat Introduction
Dog Toys and How to Use Them
Crate Training Your Dog or Puppy