My opinion: you’re on the right track with “clean out the toilet.” Go a little further. If you want to turn OFF a woman, leave your bathroom nasty. In this case, don’t just scrub out the toilet, wipe down the counters and clean out the sink. Make sure there is soap in there and a nice clean towel. Some people like to wash their hands after they use the bathroom. I don’t like to feel like I need to wash them again in a clean place after I’ve washed them in a filthy looking place. Give the door near the doorknobs a wipe down and the lightswitch plate as well. If you can’t be bothered to scrub out the tub/shower, then pull a shower curtain around to hide the bath crust. If you expect your lady friends to spend the night and they might want to USE the shower, you have to scrub that out too.
My secret for making the house seem really clean when it isn’t all that is doing the floors. Use Swiffer products – they have a sweeper thingy that’s like a dust mop + very light vacuum. Then use the Swiffer mop. Clean the floors and dust or wipe off any flat surfaces like countertops and coffee tables. I might not notice dog fur or dust bunnies around the baseboards, but I like to be barefoot. If there’s so much grit on your floors that it feels like I’m walking on the beach I won’t want to take my shoes off.
If your seating spots – couch, chairs, whathaveyou – haven’t been steam cleaned in forever, throw a nice sheet or slipcover over it.
If you have clutter, at least sort into “like” piles (all old newspapers together, all mail and bills in another separate pile, all dirty clothes in one hamper in one spot) and try to make the piles somewhat neat.
It’s heavy layers of dust, gritty floors, unscrubbed bathrooms, and grimy hand and fingerprints on things like light switch plates and around the handle of your fridge door that squick people out. At least 3-4 times a year, I’d recommend going around and starting at the top and clean every damn thing all the way down to the floors. If your place is only 750 sq ft., then this shouldn’t really take that long and shouldn’t really be a hardship. Pro tip: the space will actually FEEL bigger if you keep it cleaner.
Also, you might consider politer guests. Even if I walked into your place, it stank of beer and pizza boxes and there was an inch of dust on everything, I wouldn’t say anything. I also wouldn’t sit down, wouldn’t touch anything, and I’d get the hell outta here as fast as I could. But I wouldn’t give you a condescending judgmental sneer while I disparaged your housekeeping skills. If I liked you, I might even comment positively that your toilet is nice and clean and how nice to pee in a man’s bathroom without concern for dog knows what bacteria might be living in there. Women have to put their bare asses on your toilet seat. Please make sure that thing is sanitized if you want them to feel comfortable using it.
And do your floors: sweep and mop.