pesach chumrohs

I was just wondering if anyone had interesting pesach food chumrohs? or which chumrohs do you keep on pesach?

http://www.theyeshivaworld.com/coffeeroom/topic/%D7%94%D7%A4%D7%A1%D7%97-%D7%90%D7%99%D7%A0%D7%95-%D7%A0%D7%90%D7%9B%D7%9C-extreme-chumros