The washing machine and dishwasher definitely did.
I don't own a car, so I can't comment on that.
I don't own a car, so I can't comment on that.
1. Washing machine
2. Vacuum cleaner
3. Microwave oven
4. Electric refrigerator (but they had a cold underground cellar, while I no longer have such luxuries)
There are also various modern tools that are not used in the normal day-to-day life, but only when incidents happen, which require repairs, for example an electric drill or reciprocating saw, or a soldering iron, or an electric sewing machine (but my grandparents had a mechanical Singer sewing machine, which did the same job, only with more effort) and sometimes, but not often, I prepare some kind of food for which an electric mixer accelerates enough the preparation to compensate for the time spent with assembling, disassembling and washing the mixer.
While other modern inventions, like computers, are very important to me, none of them has reduced the amount of work that must be done in my home (I never felt the need for an automatic dishwasher, because I never let them accumulate, I wash them instantly after use, even while cooking, because I eat only food that I cook myself from raw ingredients).
> (I never felt the need for an automatic dishwasher, because I never let them accumulate, I wash them instantly after use, even while cooking, because I eat only food that I cook myself from raw ingredients).
Batching usually lowers the total amount of work you have to do. In any case, the dishwasher becomes more useful (for most people) as the household gets larger.
I find that when we cook and bake, we need the dishwasher more. If you only eat out or eat take-away, there's barely any washing up to do.
I thought of a fourth modern machine for your list: the elevator. But it only applies for some people.
Moreover, in many past societies where the wives were supposed to work at home and only the husbands were expected to do a job for a salary, it was not at all unusual for the wives to handle most of the finances, so they actually handled most of the money earned by the family, even if their husbands were on the payroll.
What was bad in the past, was not what happened in typical cases, but what happened in the worst cases. Because a fair treatment of the wife depended on the goodwill of the husband, not being codified in laws, as it should have been, that enabled a lot of abuses.
This is probably the best division to keep the wife happy, but from a certain point of view, housework should be paid at whatever rate you'd have to pay a maid to do the same.
> Moreover, in many past societies where the wives were supposed to work at home and only the husbands were expected to do a job for a salary, [...]
Where are you getting your 'many past societies' like that from? You know that salaried out-of-the-home work isn't all that old, and wasn't all that common (until recently) even where it existed?