Unfortunately, the shrinkage that occurs in wool is not reversible. The structure of wool fiber is largely responsible for this. The outside of wool fibers are covered with overlapping scales that run in one direction, much like the shingles on a roof. Wool shrinkage occurs when these scales become interlocked from exposure to moisture and agitation, such as during the washing process. Once interlocked, the scales cannot be released due to their physical structure. Attempts to forcefully stretch shrunken wools can weaken and damage the fabric.
A possible exception to the above information is in the case of a wool sweater. Due to the flexible knit structure of sweaters, you may be able to gain a little size back by blocking the sweater (if the shrinkage is not too severe). To block the sweater, gently hand wash in cool water and squeeze out the water. Roll in one or two towels to remove additional moisture. Then lay the sweater out to dry. When you lay out the sweater, try to restore the original shape and size by stretching and smoothing. ... View related article.
My favorite recipe is to combine 2 cups of water, 1/4 cup of white distilled vinegar, and up to 1/2 teaspoon of liquid soap or detergent in a spray bottle. ... View related article.
Combine one part white distilled vinegar to five parts water. Pour into a spray bottle and spray in odorous areas. Another way to purify the air is to dampen a cotton ball with pure vanilla extract, place in a dish and set in odorous area of the house. A dish with three cotton balls is great for the living room. A room in which heavy smoking occurs might require another dish. ... View related article.
My mother did this when I was a kid back in the '50's. Money was tight, and this was a great way to stretch it a little. She also kept some (just) powdered milk made up that she used in cooking - no one ever noticed the difference. Also, in a pinch powdered milk tastes much better if it is very, very cold - just stick it in the freezer until it is frosty. ... View related article.