STORAGE EXPERTS ARE HOARDERS! I love to buy organizational storage things. Marie Kondo's tips in her book "The Life-changing Magic of Tidying up" are said to really help people not only get organized, but stay that way. Here's how it works.
How to Clean Your House When You Feel Paralyzed by "The Mess"
"Aspirational" stuff - stuff you wanted/planned to use, like scrapbooking, learning Spanish. If seeing it makes you sad or guilty, then get rid of it. Someone else will loke. Think of good places to donate.