If the knees or elbows on worsted garments become shiny from wear, try steaming them. Hang them in the bath-room while running a hot bath. Make sure you close the bathroom door.
To prevent a sheen appearing, press heavy cotton, wool, acetate, rayon, linen, permanent-press and dark fabrics on the wrong side. Or use a damp cloth.
To get a high sheen on polished cotton, add half an envelope of plain gelatine to the last rinse.