Skirmisher Publishing has a project underway, and I thought I'd help them out if they'll let me. The subject is on city building, and so far they've raised enough money to publish the work in question and to expand on it to some extent. However, it is on the medieval city as a mundane entity, and so many of us have fantasy settings. What do you find in fantasies? Well, magick. So I'll be producing a series of essays on magick in a medieval city, starting with communities, chapter one in City Builder.
Depending on the size of the community the available magick could be limited. Then again, it may not. Should a thorp be the home of a wizard or magus there could be a fair amount of magick to be found. But should magick and its use be limited then even a major metropolis is not likely to have much.
It also depends on what is available in magick and what it can be used for. For the most part the typical RPG limits the use of magick to adventuring and that associated with adventuring. But your preferred system may well allow for the use of magick for daily life.
On p32 of Mythus Magick there is a list of things the magick of Ærth can handle in the area of cooking and food preparation. Under the "Bs" you have "bouquet and blend", which are concerned respectively with the aroma or air of a product (most likely a wine) or the mixing of items together in a recipe to produce a desired result. Now these are matters that could be handled by ordinary skill, but with magick you can insure that you get the result you want, and may be able to blend ingredients that don't ordinarily lend themselves to blending.
A village in your setting may have a reputation for the meals produced at a particular tavern, and all because the cook has talent in cooking magick. Or an inn in an otherwise disreputable neighborhood in a port town could be known for the cleanliness of its accommodations thanks to the dweomercræft of the chief maid.
Just keep in mind that in the typical adventure guide, Chivalry and Sorcery for instance, magick is really not going to be anything special. For when we are exposed to a wonder for any length of time we get used to it. As Bob Heinlein once said, "The most ordinary thing in the world is a 90 day wonder on the 91st day."
So keep that in mind as your lead your players through an adventure, and remember that it is not Flowers of the Mire that are the wonder, but how you present them.
And before I forget, here a link to the City Builder kickstarter.