Re: some great stuff
Susan, a few years ago, I heard about the Steamrail Ironing System. It's basically an enclosed cabinet in which a steamer pumps in steam, clothes are hung in the cabinet for around 10 to 15 minutes and supposedly, ironing is complete. It is not exactly a high-tech solution but the idea is nice.
Yes, you are spot on, if I recall correctly, I think it was a jacket that had the ability to auto-wash, in the movie Back to the Future. And, in the television series The Girl from Tomorrow, there was a device on which an individual had to stand and in 15-seconds, washing and ironing both were accomplished. With the fashion in which Nano paints for fabrics are progressing, it seems that this device is already obsolete.
Speaking of devices/discoveries that save labor, 3D printed food is an interesting development. Generally the hypothesis is that if humans did not discover fire then, they would have been limited to a diet of vegetables, fruits and nuts. The calories per gram in such food items are low and it would take on average 8 to 10 hours to chew the vegetables in order to gain the recommended 2,500 of calories needed by the human body. But fire and cooking, unleashed a diet that had a higher calories count per gram -- enabling the community to spend less time on chewing food and more time towards family, work and studies. 3D printed food might enable food creation at the home on a calorie by calorie base and maybe, this would help control obesity levels in developed economies and control food shortages (lower food wastage) in developing economies.