No Clothes Washing In The Winter
We already talked about how people used to have only four outfits. You might not be surprised to hear that they did not wash them during the winter. Most people found it too cold to undress, so they simply kept them on all season. Washing clothes meant heating up water and drying the clothes while they were buck naked the whole time. Since they did not sweat a lot, perhaps it did not smell too much.
Teeth Lacquering Led To Irreversible Damage
This would not make sense to the current generation, but teeth blackening used to be a thing. It was common in Vietnamese and Japanese cultures. They believed that black teeth symbolized maturity and civilization. This process involved corroding the teeth enamel using chemicals. The end result was a glossy black finish. The chemicals kept the teeth safe from decay but also damaged them irreparably.