[yipyap]

Ha, it has been so long (3years), that I almost forgot that Taffy had to get used to his collar and leash. He started out with just a little, light cloth collar that he wore around the house. (Cat & Kitten collars are smaller and work well for tiny yorkie pups, but make sure NOT to buy a "Break-away cat collar"--these will snap apart if they are tugged on, so kitties who get stuck on bushes or branches can break free and go home. If you buy a small cat/kitten collar, be sure they are "solid material all the way around".)
As Taffy got his county tags and rabies tag, I added these to his daily collar, he got used to their dangly feeling. (He has a number of different collars and leashes, but I don't swap his collars as much, because he needs his tags moved on to them go into the Cities of Staunton & Waynesboro!) He mainly now wears a favorite, small black leather collar with little 'rhinestone dog bones' around it.
If you have problems getting your pup to follow you with a leash, there is nothing like a yummy treat in front of your puppy to get him moving to follow you. Be sure he has gotten these treats Before & Really likes them and will follow beside you as you hold the treat down along the outside of your right leg as you two walk through your house....before you even try attaching a leash. (I got a light, thin leash when Taff was a pup.) Taffy was following me around in circular "walks" indoors through our kitchen, den, and hallway for a treat. Taffy got used following me indoors early on..it was late fall and chilly outside! (He would also learn to "come" to me when shown I held the treat.) I got the light leash on him while he was following me around and around in the house to get the treats! Now, he had already seen the leash on the floor, and sniffed it, but ignored it for his toys. I tried to keep my voice really happy & focused more on him staying with me for a little treat...I tried to not put much attention on the leash when I clipped it on while he nibbled. And we would walk a forward a bit and I held the treat by my leg...and then he'd nibble...and we walked a bit more.
Now, don't try to do this to long or the pup will get tired and want to finally stop or walk away...you don't want to get tugging the little guy forward or he may start fighting the leash. We did go outdoors both in sweaters or coats. We just ambled along he was excitedly sniffing, so he got used to the feel of the leash, and I walked slowly along until he had peed and checked out the porch plants.
Finally, treat in fingers, I would let him sniff it by my right leg registrationand we'd walk across the short side of the yard. I believe I may have started saying "Heel" Taffy as we walked. I would try turning in different directions, and he usually would turn to follow me & the treat! After 4-5 minutes he had enough treats. We slowly lengthened the walks and streched-out the time between his getting real nibbles of treats. We finally were going down the yard, and he ignored the leash.
*If your puppy is a "real tugger" on his leash, and you feel he his dragging you, and he doesn't respond to gentle tugs on his leash or your commands to come back (even for treat) you may want to try this: our pet stores sell a simple little harness called "The Easy Walker". Have someone at the store show you how it should be fitted to your dog to get the right size. This harness does Not have its 'attachment ring' where the leash hooks on...up at the dog's back like other harnesses. This simple harness fits around your dogs chest area like most, with a little strap over his shoulders and behind his front legs, but the simple strap that goes across the front of his chest is Where the harness's ring will attach. When the dog pulls on this harness, his own pulling acts against him. With the ring and leash on the front chest, the dog actually pulls himself back and toward you...if you have him on either side. Be sure to hold your leash a little higher, don't let it drag in front of his feet...you don't want him to trip as he walks. I go back to use this leash from time to time, especially after my husband takes Taffy for walks! My husband lets the dog pull him every which way, even though I remind him to get Taffy to "Heel". (Sigh!) Now, I DO let Taffy stop and sniff around-on my walks, but I will tell Taffy "Okay, okay" and shake his leash. He knows he can now stop and sniff around for a bit. Then, I say "Heel" and pat my right leg and off we go again with him beside my leg. If he tries to pull me with his regular collar on, I say "Taffy, heel" in a firm voice and won't move till he comes back.
You just pracfice and practice,finally the little pup remembers--"Good Boy!!"