Never press a dirty garment.
The heat from the iron may set a stain.
Don't let hair spray or perfume touch your garment.
Alcohol can leave a faded, "raindrop" effect on many fabrics.
Be careful with deodorant applications.
Chemicals in the product may cause a discoloration in garments.
Resist the urge to try home remedies.
Unless you know exactly what you are doing, you could irreparably damage a dry-clean-only garment.
Never try to rub a stain out of silk.
Even gently rubbing can cause breakage of silk fibers. Use tie spray. Expensive silk ties are almost impossible to clean without spotting, unless they have been sprayed with a food and drink repellent. A spray-protected tie will wipe clean, eliminating the need for dry cleaning or replacing it.
Be sure to read labels carefully when caring for delicate knits such as cotton, rayon and linen.
These delicate summer fabrics require close attention to care label instructions. Many knits require hand washing, some can be processed in a machine with a gentle or knit cycle and others may require dry cleaning only. Although linen is washable, it can shrink considerably unless it is presrunk in manufacture. Unless the label says "presrunk", wash the garment in warm water on a short cycle and hang to dry. Some knits can be air-dried on a towel or tumble dried. Follow you garment's specific care label instructions. In addition, it is important to check knitted garment for unraveling and fraying which may occur if the edges of the fabric have not been properly bound. Secure any loose fibers so that the fabric can withstand normal use and care procedures. Once significant unraveling has occurred, there is no remedy.
Dry cleaning silk garments is still the safest method to prevent color loss, textural changes and fabric damage.
Be extremely careful if attempting any home stain removal of silk garments. Never rub silk while wet. Gently blot the affected area and take the garment to your dry cleaner for further remedy. To help extend your garments life, use dress shields whenever possible and avoid contact with sprays and solutions containing alcohol when dressing.
Store winter clothes in a cool, dry, well-ventilated area.
Do not store clothes in a hot attic or damp basement. Hang garments on padded hangers to prevent creasing or stretching. Pad garments with tissue paper to avoid excess creasing where folded. And remember, do not store garments in plastic bags. Garments need to breath and plastic bags can trap moisture.
International Fabric Institute
International Fabric Institute - "Fabric-Forum"