Whats the best thing to sit on? What is the kind of chair that you just love to sit on?

I'm loving my birth ease ball i got from a friend today who used it as a seat during her pregnancy. It is so comfy that i haven't wanted to get off it since i got home a while ago.

I'm waiting for the teasing from my partner when he gets home as it says on it that it is anti-burst. Think i'll not say anything about it untill he notices lol. May be a while