I am an on-site host, so my situation is a bit different, but for guests staying 8-10 days, I offer to clean their room and change their bedlinens half way through their stay, e.g. after 4 or 5 days. Guests staying longer get this once a week. Some guests appreciate this, but some don't particularly want it, and that's fine too as it saves me time!
I have found that very long term guests (1-4 month stays) don't expect me to clean their room or do the laundry. They are happy to wash the linens and towels themselves and buy their own detergent. I just make sure they have two sets of linens and towels. They do the laundry less often than I would so it saves on the bills.
However, if it seemed like they were never washing the stuff, then I would make sure I did as I don't want my linens ruined! I made this mistake once with an 18-year-old girl who only used one set of the linens she was given and never washed those or the towels in the month she was here! They had to be thrown away because I couldn't get them clean again.
Guests get a full set of towels (bath/hand/wash cloths etc.) per person and then I offer to replace these after about three days (or earlier if the guest requests). I am also conscious of the environment, and even 5 star hotels enourage guests not to go through fresh towels daily. However, if a guest asks for new towels every day, I feel like I have no choice but to comply. Maybe a hotel like sign about the environment would work, but most guests don't expect a daily towel change anyway, so I think it's a bit unnecessary. However, if you give them all the sets of towels at once, they seem to use them all and need replacements much sooner.
As for the other stuff, I don't do breakfast, but provide tea, coffee, sugar, hot chocolate, honey, jam, oats and a few other cupboard staples, but no fresh food. I have been putting bowls of fruit in rooms, but this hardly ever gets eaten, so I will stop doing that.
Guests get mini bottles of toiletries in their rooms (only because I had a stack of them - I often get given sample sized products as part of my job). I also put full sized bottles of shampoo, conditioner and shower gel, plus hand soap, in the bathrooms. I give them a few other essentials such as mini sewing kit, nail files, razors, toothbrushes, shower caps, combs etc. depending on what I have available. The bathrooms are always well stocked with lots of toilet paper, but I top it up as necessary, rather than leaving stacks and stacks of it on view. I also leave some magazines and tourist leaflets in the rooms.
Guests can go through a lot of tissue. They sometimes use or take the travel size toiletries, but more often, they don't. They never take the full sized toiletries or any food supplies with them. Nor do they take towels, magazines etc.. The one thing that does keep disappearing is the travel adaptors I leave in the rooms. I really can't believe that some guests steal things like laundry capsules!
RE personal laundry, I only offer this for longer-term guests (although I do make exceptions in some cases). There is too much room for user error and breaking my expensive washer/dryer, plus, personally, I think it's rude to show up to a host's home with a load of dirty laundry and expect to do it there (you'd pay a fortune for it in a hotel), but this does happen. I'm also not willing to let guests put on a load for a couple of t-shirts or a handful of socks. It's not good for my pocket nor for the environment!
Even though it's in my house rules that laundry is only available for longer-term guests, short-term guests often still expect it, so that can lead to some awkward discussions. Sometimes it's just not worth the antagonism, so I say yes, but I will put the laundry on, not let them use the machine themselves.
