A Hoarder. There is a show on TLC(Hoarding:Buried Alive)
a procrastinator
The person who keeps your dog while you are on your holiday is called a sitter. Just like a baby sitter!
A person that keeps chickens is usually called a chicken farmer. They can also be referred to as a rancher.
A person who hoards things that you have would be called..."you." Or whatever your name is.
A person who builds things out of stone is called a stonemason or a stoneworker.
A person who collects things is typically called a "collector" or a "collector specialist."
A person who likes to burn things is called a pyromaniac
accountant bookkeeper
A person who always expects good things to happen is called an "optimist" A person who always expects bad things to happen is called a "pessimist".
Bookeeper!
closed off
sado