How to Keep Brushes Clean
The best way in which to clean hair-brushes is with spirits of ammonia, as its effect is immediate. No rubbing is required, and cold water can be used just as successfully as warm. Take a tablespoonful of ammonia to a quart of water, dip the hair part of the brush without wetting the ivory, and in a moment the grease is removed; then rinse in cold water, shake well, and dry in the air, but not in the sun. Soda and soap soften the bristles and invariably turn the ivory yellow.
Source: The White House Cookbook, F.L. Gillette
To Lengthen the Life of a Broom
Your broom will last much longer and be made tough and pliable, by dipping for a minute or two, in a pail of boiling suds, once a week. A carpet will wear longer if swept with a broom treated in this way. Leave your broom bottom side up, or hang it.
Source: Things Mother Used To Make, L.M. Gurney