Hi @Mary885
I host a lot of long term guests (exchange students) in my private room listing 🙂 In my case, I handle all sheet changes, empty the trash bin in the room/bath, and provide clean towels for the entire stay (we handle laundry of the sheets and guest towels, so the guest is responsible for their personal clothes only) - it's a good excuse to occasionally enter the guest room & bath and keep an eye on the guest's space. We clearly communicate that the guest is responsible for keeping the guest private spaces clean, but we do include those spaces during our weekly vaccum of the entire house.
Most of my guests stay for up to 4 months so Henry and I usually invite them to dinner at least once and also invite them to join us when we go to our favorite local Korean bbq place (usually right around the middle of their stay) Also, when we buy melons or seasonal fruit we tend to buy plenty to share with our guest.