One thing that touched my heart through the whole thing was the tenderness of the staff at the vet. They had to put a catheter/IV in for the drugs and it was wrapped with that sticky, stretchy tape...it had a heart on it. They also made an imprint of Frankie's paw in some clay for us. I wasn't expecting that at all, it will be a nice momento to treasure.
By far, the sweetest thing was this: After the process was over they allowed us to have some alone time with Frankie. We cuddled and loved him for a few minutes and then called the nurse to come get him. The nurse who came in (who was a guy in his late 20's) gently took him from my arms and then kissed Frank on the top of the head. Gets me all teary just thinking about it.