Post-consumer: Post-consumer paper encompasses all of your office paper trash that ordinarily would have ended upon a landfill, packing and shipping boxes, cardboard, and various newsprint as in newspapers.
When I think about paper crafts, for some reason my mind wanders to those big rolls of newsprint that you used to be able to buy all over the place (and still can, it appears, on the Internet, of course).
Magazine paper and newsprint: While these papers are sometimes used for practicing origami folds before attempting the final version of a project, many people find they don't hold creases well.
BT: The majority is newsprint, but other post-consumer recycled paper is used such as shredded paper money from the Federal Reserve and other paper that conforms to certain quality standards.
Typically made from recycled newsprint, cellulose insulation is a safe product that is also relatively eco-friendly.