Hi @Elfi90 For all my listings I provide basic supplies including toiletries, paper products, cleaning necessities, kitchen basics etc. My rule of thumb is to have enough for what an average person might consume/use in a week (Ex a 4 pack of toilet paper)
In the beginning I learned the hard way though about replenishing supplies consistently for long term stays, as I have had handfuls of guests go through an exorbitant number of products such as a roll of paper towels a day or an entire large container of coffee in less than 24 hrs.
For extended stays I now include a nice little blurb in their welcome message that states they will be provided the necessities to get them started, however if things need to be replenished during their stay, they will be responsible for doing so. I offer a welcome/information binder in their room which provides a number of retail options where they can obtain pretty much anything.