I think a better term to use is to "prioritize" rather than gamify.

I also think there are better ways to do tasks when taking into account different situations. Making a more simple meal might mean less effort and less time washing your dishes. Using disposable ones is also possible if you value your time more than the ever increasing total money spent on it. I'd argue that daily tasks are the most easiest to optimize as you will inevitably get more practice and you'll see how can stuff be done better.