I've recently become a huge fan of personalized dog collars.  Here's why...  Koda, my rescued German Shepherd, is the sweetest dog in the world.  She is however very high strung.  Koda loves to run.  And while I do not doubt that she will come back should she get loose, there is always that worry in the back of my mind.  So I invested in dog name tags for her collars.  Well Koda apparently did not enjoy her dog tags.  She managed to work each dog tag off the wire loop that attached the dog tags to her collars.  After loosing three I realized dog tags just won't work for Koda. 

At that point I became a convert to personalized dog collars.  They have your dog's name embroidered on the collar with whatever contact information you would like.  It's much easier for your dog to loose her dog tag than her collar.  At least Koda hasn't figured out how to remove her collar yet.  Orvis has a good selection of personalized dog collars.  I personally like the buckle collar, but know the Martingale Personalized Dog Collars are very popular.  You can check them out here:  Personalized Dog Collar