So - we took Teddy for his last car ride yesterday morning. The vet said she thought it was time, that he probably wasn't feeling well a lot of the time, plus he'd developed glaucoma in one eye. She said we could put him on pain meds but it would just be temporary fix.
We made the decision to let him go, and she injected a sleeping dose into him. She said it would probably sting and many dogs fret about it, but he just lay there, his head laying on my left arm. We stayed like that until the doctor was sure he was deeply asleep, then they took him away and put an IV into his leg and brought him back. We wanted to be with him as he passed. She put the euthanasia drug into the IV, and in just a minute or two he was gone.
We decided to have him cremated and returned to us, which will be about a week. We'll bury him in the memorial area in our backyard.
He was a wonderful dog, and very brave until the end. I'm keeping him as my avatar for awhile.