What's your favorite 'home accessory' and why?
If you mean which one in particular I really don't know. I do love this iron easel on my desk:

I wouldn't say it's My Favourite, as I couldn't possibly pick just one, but it's one I really like and it's right next to me so I chose to highlight it.
If you meant what type of accessory in general, I'd have to say clocks. I have a clock in each room because I don't wear a watch (I check the time on my cellphone or car dashboard when I'm out and about).