I said bidet in another comment, but if you are looking for some other suggestions.
- Bathroom fan timer switches: replace your switch for the fan with a timer. Best way to keep bathrooms less humid without having to remember to turn off. I used this one as it doesnt require a neutral
- French Door Fridge: not really home improvement, but man it makes a difference in qol. I meal prep for the week and can easily access food, store whole trays, and never had to bend over to get items on the bottom shelf.
- Bug screens for door: they have magnetic closing bug screens for doors. If you live in a temperate climate, it can be very nice to keep the doors open without bugs coming in. Also allows pets easy access to backyard without pet door.
You can try magnetic bug screens for door. They allow a person to go through, and close magnetically behind someone. Could lower your mosquito problem even more. Something like this. Note that I have never used this exact one.