Hi @Zacharias0, I had those annoying guests that arrive with a 23kg suitcase (a tiny girl maybe weighing 42kg), full of dirty laundry, intending to wash it in Paris on a 2 days trip, or better for me to wash it. I had already a limit of one machine for a five day stay, but that did not deter them. Putting a price on the machine load did. Still got a few who need to wash one pair of socks and one not very sexy underpant and one t-shirt in my glass sink, which is not made for that purpose, and hang all that decoratively from the rafters, to be admired in the kitchen underneath. There is a clothes line in the bathroom, but who would see it over the tub?
I reduced those somehow with the rule "drying obligatory in the laundromat" and by putting a small wardrobe on the wall beside/over the guest bed. The last two stubborn ones per year may admire their hanging socks and sagging underwear out of my view.
I don't like the lingering guests either, but got rid of them with the rule to be out of the house between 10 am and 5 pm. (Which means sometimes 11 am). I still get guests, less so in winter now, but this January was a few Euros better than last January, without the homebodies who need to heat the room to a temperature that makes me swoon - for the heat and thinking of my electricity bill. The public changed a bit due to the rule: more business travelers and less tourists. Shorter stays.
But I don't begrudge them the kitchen use. It never was intense in my place, got even less since I raised the price a bit.
I added breakfast and give them a huge choice, served for tourists, self service for early birds, grab a banana and a package of juice for those catching an early flight or train. If they get a breakfast in a bistro, it's at least a few Euros on the bar, 7 to 10 a bit more copious and sitting on a table. I can provide the items for an average of 2 or 3 Euros, which I added to the price and the visitors feel they made a good deal. From time to time, a hungry kid on a budget will have breakfast and take a snack, but it does not happen often. Maybe 1 in 50 so far. Others make themselves a cup of tea in the evening and one in the morning, feel pleased to have a good tea for free and I'm pleased because it costs me a few cents. For a reason I never understood, tea in the bistro costs 3 times the price of coffee.