Wig Care - try using rubber cement when attaching a wig to a doll head. Then, if you decide to remove the wig, it'll peel off neatly and won't damage the wig or doll head. Wig spray will make dolly's hair manageable and will bring back that sheen. Composition Dolls - never use water on composition dolls, it's like acid on skin. Try cleaning with Pond's Cold Cream or Vaseline with a soft tissue.
Basements are cooler than attics.
Extreme temperatures and direct sunlight can discolor or melt your vinyl treasure. In many cases, Remove Zit can make those ink stains disappear. Wooden Dolls - must be kept dry. Too much moisture can rot the wood. Painted faces or designs will fade or chip and fasteners such as rubber bands will rot and break.