Speakers
I just put some speakers in the kitchen, so now I can listen to music or NPR while I do dishes and/or clean in there. Not very exciting, I know, but it makes me happy.
(Now I wish I had some way to have the speakers keep track of where I am, and turn on and off as I wandered around the house. Maybe I should off Bill Gates and take his house. Nah, never mind, it must run Windows.)