Sometimes in order to get the desired results you just have to mix it up a bit.
Usually every Monday is work day (chore day) at our house. I am usually eye deep in laundery (because Monday is my laundry day) and picking up from the weekend, so it has become a family affair. In order to get more done and lighten the whiney tones; I on occasion write a bunch of 'real chores' on pieces of paper and put them in a bowl, then I wite a bunch of 'cheeky chores' and put those into the bowl and mix it up. The kids draw out a piece of paper and do what it says, throw away the piece and grab another. They love the fun interuptions when they pull out a 'cheeky chore', coming and hugging Mom or stopping to get to eat a cookie, helps them keep going with good attitudes. :) Truth is I like a few 'cheeky chores' in my day too!