Okay... okay...

Well... I posted the photo of the garage, but I also have a photo of my stack of scrap cardstock. I'm embarassed to post it, but here it is (again, I hope that in sharing I'll prompt myself to DO something with all of this):

I keep it all stored in the cardboard trays that cases of canned dog and cat food come in. Shown above are two dog food trays and one cat food tray (the big pieces of cardstock that are definitely worth saving are in the dog food ones and the little scraps I should probably throw away are in the cat food tray). I use those trays for everything (as shown in the upper right of the photo!); they're VERY handy!