@Betsy27,
Hi! I know the feeling... I've had much of this happen with certain guests.
My solution? I place an information sheet for the guest right on the bed.
My unit is a studio and the information for everything is in the house manual, but I put the basics on the paper and the last note is: "If you need more information, please consult the house manual on the dresser."
The paper has WiFi password, the basics of the door-lock including their code, where the Keurig Pods are kept, the location of extra toilet paper, soap and shampoo, toothbrush, toothpaste, aspirin and tylenol, etc.
Most fold this up and put it in their pocket or purse. I usually don't get calls. I attribute it to this information sheet.
Just my two cents...