This sounds more like a bed-and-breakfast style setup and quite a bit of effort! In the long run, it might become exhausting if you want the place to run more independently. For a week-long stay, this would mean being there daily to provide breakfast. Do you charge extra for it, or is it more of a surprise treat?
Personally, I usually leave a bottle of wine or a jar of candy for guests. If they’re not into wine, they just leave it, but they always appreciate the gesture. I remember how much my husband and I enjoyed a complimentary bottle of wine while traveling and staying in an Airbnb, it really made our stay feel special!