Hair wave treatments can cause loss of color. Water stains from radiators, open windows, leaks, animals, etc. are usually not removable. Stains become visible with age or after drycleaning. Anticipate drapery shrinkage after drycleaning or washing. Sunlight will fade colors and cause deterioration of drapery fabric.
Lined draperies are preferable.
Furniture covers are also subject to shrinkage and sunfading. If washed, replace them on the furniture before they are fully dry. Never, never clean or wash pillow covers if they are actually the furniture covering. Zippers are meant only to aid in achieving a good fit. Wool fiver-filled comforters are prone to extreme shrinkage.