The more items people are listing, the more I realise that giving any of them up would be difficult.
I try not to use my oven now there are just two of us. I still cook a lot from scratch, but where possible I use the air fryer and the microwave instead of heating up a large oven. Five years ago the oven would have been at the top of my 'to keep' list.
The vacuum cleaner (light and cordless) is useful, but again, less so than in the past, as most of downstairs has hard flooring now, and I could manage with a corded one left upstairs if I had to.
Times change, don't they?