The following are booklets that can be printed and bound at home using a stapler and US Letter (or A4) standard printer paper. This is a significantly cheaper option than ordering physical books if you already own a printer.
In my case, it comes out to about $0.25 USD for a 50-page booklet.
If it seems that the page numbers are out of order (i.e., the second page is directly next to the last page), don't worry, as that is the proper order for booklets of this type.
Guide on Producing Cheap Booklets at Home