I am sorry that you just lost your cat. I recently had to put my cat to sleep. It is still really really difficult. I remember waking up in the middle of the night, seeing our other cat in the shadows (his brother from the same litter), and having this moment of hope that it had just been a bad dream.
He would always meow at me as soon as he saw me in the morning. He rarely meowed at any other time (or person), but he would also sometimes start howling if he was left alone in the living room. After he died, his brother was very very clingy to my mom. Even now he still gets restless if she leaves in the morning for awhile and will wait to greet her at the door.
About two weeks after we had to put our cat to sleep we found a kitten sitting in our kitchen eating kitty food. Somehow she had managed to find a hole in the fence surrounding our back porch and decided to just walk right in (the porch was completely enclosed so our cats could not get out). Like the cat we had just put to sleep, this kitten was a short-haired tuxedo cat. It was rather crazy timing and a crazy coincidence.
