I came across this post a couple of days ago, and I decided that I needed to make one of these Grateful Journals for myself. This was super easy. I cut two pieces of chipboard for the front and back covers (my covers are 8" x 8"). Then I gathered all kinds of papers: envelopes, old postcards, tags, scraps, tablet pages, etc. I put them all through my 3-hole punch and arranged them in a way I liked. I used 52 pages-- one for each week of the year.
Each evening, I will record something I'm grateful for that day. I plan on adding little bits of ephemera to the covers or to the pages as I go about my days. I may whip a few of these up for gifts. See another one of these here.