15. Any mundane practices that are associated with this deity?
Hestia deals with quite a few of the more mundane aspects of life. She is associated with baking bread, and with the preparation of family meals, as well as with preparation of larger banquets. Similarly, Hestia also deals with hospitality - being a good host, but also being a good guest.
As the hearth was the primary source of heat for the home, Hestia is also associated with keeping the home warm during cool weather. Since Hestia is credited with the invention of the home itself, and teaching that skill to humans, the actual building of a home, or an addition to the home, could be seen as being under her influence.
Really, most aspects of running a household also fall under Hestia's domain, anything from cleaning, making sure the home doesn't fall into disrepair, and even things like making sure your bills are paid and your books are balanced could be seen as under Hestia's influence - anything that ensures that the home runs smoothly. As Hestia was also the hearth at the center of a town or city, one might associate her with the smooth running of day-to-day civic matters, as well.