I think you're looking at it backwards, other stuff as a service is the OG, and SaaS is the relatively new thing.
Food as a Service: Restaurants, Cafes, Uber eats, Door dash, and other services that rich people use where they order food to be made and delivered by a private kitchen (not an open restaurant)
Car as a Service: Taxis, Yellow Cab, Uber, Lyft, car rentals, and car leasing
Fridge as a Service: there are stores that would rent you a fridge, it's not as common, as most rental places come with fridges, but I've seen many in Houston without. I've also seen Laundry machine and Dryer rentals
[Anything] as a Service: they exist, but not common or unknown to people like you and me. For example there are dog walking services. Another one that appeared in the past decade is related to clothing where you get a box every month that contains some clothing articles, or others that would assign a personal stylist to help you shop for clothes... Etc
I mean saas as subscription, i don't think it's applicable otherwise. E.g. hotels are not a service as are not airplanes. Neither is uber, you buy itemized rides from individual riders, the fact that uber mediates it doesnt make it a xaas. Otherwise, every grocery store would be a xaas
Food as a Service: Restaurants, Cafes, Uber eats, Door dash, and other services that rich people use where they order food to be made and delivered by a private kitchen (not an open restaurant)
Car as a Service: Taxis, Yellow Cab, Uber, Lyft, car rentals, and car leasing
Fridge as a Service: there are stores that would rent you a fridge, it's not as common, as most rental places come with fridges, but I've seen many in Houston without. I've also seen Laundry machine and Dryer rentals
[Anything] as a Service: they exist, but not common or unknown to people like you and me. For example there are dog walking services. Another one that appeared in the past decade is related to clothing where you get a box every month that contains some clothing articles, or others that would assign a personal stylist to help you shop for clothes... Etc