If the definition of "pack-rat" is someone who can't throw things out, and lives with mounds of clutter, then I'll say "No" to the question, However, I find myself tending to buy stuff--nothing expensive, and most of it we use, but I would like to see the house be more Zen-like! I also have a tendancy to stuff things in boxes and bags to consolidate them/keep the cats out of the stuff, until I can sort it out, and deal with it. It's nothing major, but I know it's not the proper way of doing things, so it bugs me. Part of this is because we have 2 floors, though.
I can, and do, regularly weed out my house, and donate things to charity.
I have a thing about buying necessities on sale/in bulk (I just received a shipment of toilet paper, yes, toilet paper, from eBay of all places. It's something we'll always need, and even with the shipping, it was a decent price. All 96 rolls of it!
May I add we only have 2 people living in the house?). I hate grcoery shopping, and also running out of stuff, so I tend to do this. I'm sure the neighbor (the JTR owner--see my dog post) who came over twice yesterday, and saw the huge, 4ft-tall box of t.p. in the foyer must thing I'm weird! However, it came late Friday, and it weighed 50lbs, and we plan to store it in the attic, so I had to wait for DH to be there. (We just did it, so I can feel normal now!) I also buy canned and dried food in bulk. Luckily, I have a smallish under-stairs pantry, which has now run out of shelf space.
Despite all of this, we seldom waste anything I buy in bulk, so maybe I'm not too bad after all????