We have the good fortune to have inherited a small cottage in the countryside that we share with my BIL, SIL and FIL. It is ideally located on a river with a large garden, and is very pretty on the outside. It belonged to DH's grandparents for a long time and then MIL (now deceased). I am required to spend a large number of my holidays in it for various reasons of family diplomacy.
Only problem is that inside it looks and smells like something from a probate sale and is domestically neglected and there are areas in which it is filthy (i.e. insect invasions). In bad weather we are cooped up in one room for a long time in the dark, with all the muck. Periodically I try to clean it up with a bit of help from DH, but the place is so dark and cluttered with broken 1950s-1970s tat that I am not allowed to get rid of, that it is an exhausting process, especially as this is normally done with kids running around me, in my precious leave from work. So I rarely get a proper holiday - I am just an unpaid skivvy. I can't just sit and look at the dirt and crap like the others, not least of all because I normally have a toddler falling over it all. Sheets are never changed unless I do them all, towels are grey with dirt unless I change them or buy new ones, kitchen cupboards full of very old food unless I turn them out and buy replacements, and sticky grey fingermarks are on every surface unless I wipe them off. Every time I travel there I am aware that at least a day's work beckons just to make the place habitable for a young family.
Over the years I have been very resentful about doing this, not least because my SIL does practically nothing apart from wipe the work surfaces in the kitchen before she leaves. She only works very part time and has grown up children, and when her kids were younger MIL cleaned up after her. She thinks I clean for fun. BIL is kind but a bit oblivious and not that domesticated.
I have decided that this is the year I will reform the situation. How do I go about this, given that the others do so little and let it get so dirty and run down?