ISO ideas for this guest room situation at DD's house

Do you want instant coffee or a Kuerig that makes REAL coffee and some pods?

Especially if you get up earlier than everyone else ...

Check to see what bedding she has ... you might want to bring your own pillows and duvet ...

Washcloth and towel
Your own pillow and blanket if you’re picky about that.

Agree with the kettle and extra paper goods, and linens for the bathroom (a rug?). DH’s parents have a separate little apartment attached to their house as well, but with a mini kitchen. Adding the fridge at a later date is a great idea. And you do want that little cutting board if you’re planning on cutting fruit. Dish scrubber (maybe one that holds the dish soap). Hand soap & refills. A wash tub that includes a drying rack to wash dishes in (instead of sink) and to dry dishes outside of bathroom. Some paper shades if the windows aren’t already covered. Small trash can and trash bags. Tote to hold all of your supplies out of the way for when you’re not there. Small first aid kit, especially pain meds, stomach meds, ointment and bandaids. Rug to wipe feet when you enter. Broom and dustpan.

Oh, and a small laundry basket to carry linens to wash in the main house. We’d always drop something when we cleaned up after when we stayed, and the stairs would make that especially important. Maybe a laundry bag for safety reasons.

If you need an electric kettle, I just bought one this weekend when I was out of town and it was needed. I already have two at home.  If you’d like it, I could run it down to you. GIFT, not selling it.

Be sure you have spoons and napkins to go with the coffee/tea service. Little cocktail napkins would probably do.

A few small dishes and extra plates for putting out snacks like nuts, fruit, cheese, or candy.

oh good, because I forgot I offered it to you and also offered it to my daughter, who said HECK YES. So then I would have had to go buy a fourth one.  Because no brain cells!

Maybe one of those light-weight stick vacuums to keep in the closet? I ended up purchasing one to use in my craft room because it needed vacuuming every time I made something and I absolutely hated going downstairs to get the big vacuum and lug it back upstairs. I bought a small one that I could just stick in the closet of my craft room. It was nice for cleaning up any glitter and paper bits in between normal house cleaning with the big vacuum. In your situation, dragging one from the main house would be an inconvenience with having to use the outside stairs to access it.

Maybe make up a small bucket with some cleaning products in it to keep under the bathroom cabinet.

Also, this isn’t really all that necessary these days but it was very handy when my parents were staying with my younger sister on her ranch. My parents built a 3-car garage with an apartment above it on my sister’s ranch property. I bought them a small Alexa device to go with the several that my sister had. That way they could use it like an intercom to speak to my sister when she was in her shop, barn, or even in her main house so that my mom didn’t have to go down the steep back staircase to go looking for her when she needed to talk to her.

Their ranch was very remote and there was no cell phone service available out there. Teaching my elderly parents to use it was a lot of fun. Mom couldn’t seem to remember to say “Alexa” first and if she did remember, she forgot the name. It was very funny. I did write down instructions for her to make it easier on her. Anyway, if your daughter already has an Alexa device, you might want to bring a little one to set up like an intercom so you can talk back and forth easily. Again, not a necessity since you could just call on your cell, but handy to have if you both already own them.