Crumple paper to give it texture. Flatten the crumpled paper.
Brew tea using 1 cup of hot water and one teabag. Pour the tea into a baking pan. Place the paper in the baking pan for about 30 seconds, and then remove it and blot it dry with paper towels.
Place a thin, cotton cloth over the paper, and use a clothes iron to iron the paper. The cloth protects the paper from the iron's direct heat.
Dip a paintbrush in the tea, and use it to dab tea on the paper. That task adds texture and variety to the paper's coloring.
Wait for the paper to dry completely before using it to write a letter. Write with brown ink to help make the letter look vintage.