Of course "Air Conditioning " rates high up there with me. Although as a kid we never had it. " Hot Glue Guns" are awesome. Great for arts and crafts and to fix a lot of things. And right now my favorite is the "Electric Heated Blanket" It is AWESOME. If you don't have one and live in a cold climate, you have to get one. I kind of rolled my eyes at it when my hubby first bought it. But I love it. Turn it on a little before you get into bed and your bed is all toasty warm.