A lamp. Electric light. And although there is nothing wrong with candlelight, sometimes a candle just doesn't cut it.
Running water. My Grandma didn't have this in her house when she was a little girl.
My pretty watch, although I only wear it when I'm teaching, which is never.
I seriously do not know what I'd do without this toaster oven.
And finally, an almost dead technology - the land line. We will probably be getting rid of ours soon.
I hope I did alright with this one. I'm even more excited for next week's theme - it's Autumn!