I took a workshop once from a lady who recycled everything! We made
sketchbooks/journals out of recycled 8 1/2" X 11" paper--junk mail, Xerox
copy overruns, etc.--things she had saved. Many of the papers were blank on
one side.
We folded our pages and stacked them. A heavier piece of (recycled) paper
was used for the cover. We sewed them with yarn through the fold. The
result was a 5 1/2" X 8" book.
I have had my classes make these journals, too. Students actually seem to
enjoy the challenge of working with and around the printed areas.