I have to agree with so many of the above posts....I do hoard for all different reasons. Seems I have lots of ideas when I'm in the stores, so I get everything of the latest thing to make, but when I get home I still haven't finished the last project and/or just don't have enough time in a day.
I've always struggled with the favorite things, that I feel I appreciate more than others might....but hanging onto to it forever just means someone else will get the pleasure instead of you!
One other thing that has helped me, is if it's something you just can't let go of then use it in something that you would keep...scrappbook, frame, etc. that way you've used it, but still have it