Does anyone have a parent who is a hoarder?

My oldest sister is/was a hoarder. She lived in a 3 bdrm home that we all grew up in. She worked at JCPenney for years and would get clothing for next to nothing. Her home ended up being stacked with crap through out and there was barely an aisle left to walk from kitchen to living rm to her bedroom. Most of the crap was clothing that still had the price tag on them. It was very bad until she decided to move in with her son and DIL in Colorado. They will keep her under control because it is their home, not hers.
My dad isn't a hoarder, but there are certain things he likes to hold onto, even though they no longer serve a purpose. I have a shed full of crap right now that I wish I could get rid of.