Watercolor paintings are usually painted on cotton rag paper, usually 140 lb or 300 lb. The paper can be hot pressed or cold pressed. Hot pressed paper is smooth, while cold pressed paper has a slight textured feel. Many watercolor paper manufacturers make their cotton rag papers by hand and emboss their manufacturer mark on a corner of the sheet.
Dissertations, some legal documents and resumes are often printed on cotton rag paper. Cotton rag paper can enhance the presentation of a printed resume. Legal documents and dissertations require a long shelf life, so that's why they are often printed on cotton rag paper.
If you like the feel of money in your hand, there's a reason for that. U.S. currency is printed on a blend of 75 percent cotton rag 25 percent linen. According to the U.S. Department of the Treasury, it would take about 4,000 double folds for a bill to tear.