It's a tough call with me. I do keep things because "I might need it one day." I don't know that I'm so much of a hoarder as I am a collector who is also a slob. The trash that doesn't get thrown away are mostly just because I don't have the energy or initiative to get up and take care of it, not because I'm obsessed with cereal boxes or Styrofoam cups or banana peels.
I DO have a little problem with "souvenirs". When I go on a trip, I'll feel the need to keep everything in connection with it -- photos, ticket stubs, receipts, brochures, newspapers. It wouldn't be a big deal if I ever looked at the stuff again, but I don't.
Paper in general seems to be a problem for me.
-- I LOVE books, and so have hundreds of them. Since nearly everything I have is non-fiction reference, not having read everything isn't an issue.
-- Magazines get me too, and yes -- I do have issues with throwing them away. I'm always telling people stories about things I've read, and I like to keep the magazines in case I need to look it up again. I also can't bring myself to throw away a magazine that I haven't finished reading.
-- I do a lot of list-making and doodling and so forth, and I have dozens of notebooks and loose pages with notes on them. I just know that when I finally throw one of those books or pages away, there will be something in it that I desperately need.
It does sound as though I do have some hoarder traits, but maybe I need some encouragement to be a true hoarder.
EDIT: Oops -- forgot about all my purple stuff. I have lots of purple things, and want more. But my financial situation is such that I can't "hoard" purple stuff as much as I would like.
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AS: 136/200
NT: 66/200
EQ: 45/50
Go as far as you can see. When you get there, you will see farther.