Automatic dishwashers, laundry machines, vacuums, automatic car washes are all widely known examples of replacing low-skill labor with machines. There's also the enormous amount of low-skill labor that's been removed in agriculture and the building trade (think: digging ditches by hand, which they still do in 3rd world countries).
Even food preparation labor has been dramatically reduced already at home thanks to the microwave and the logistic possibility of shipping and storing frozen foods (not to mention the proliferation of restaurants).
Low-skill activities are almost always the easiest things to automate (that's why we call them "low skill"). Things that require fuzzy human judgement, like managing people, are hard—if not impossible—to automate.