My print collection is getting out of hand. (Click image for annotation.)
I'm not a saver of all things, but I do put aside catalogs, brochures, postcards, tear sheets, business cards, and professional print collateral of all types. Most of these are keepers.
They help spark ideas for both graphic design projects and family keepsake mini-books. Sometimes its the paper quality, the fold, the size, the layout, or a typeface. Other times it's the content itself that grabs me, as with the Amy Butler promotional piece to the lower right.
I probably won't be making an inspiration board from these. Having them up on the wall is a bit too distracting at present, but oh how I love to rifle through (and edit) on a weekend.