The bathroom. Especially around the toilet since we have two boys who have never known how to aim.
The oven is the easiest. It's self-cleaning and just a matter of wiping out the white ash.
My boys are adults now and have their own toilets, LOL
Funny my husband has been deployed twice, and on other away from home duty almost since we bought the house--today he asked what did you do today when he called, I said cleaned the oven, he said oh that must have gone quick just turn on the self clean and wipe.
Umm, ok I get that you have only been home about a year total out of the last 4, but sheesh, you could remember we do not have a self cleaning oven--I was pretty steamed.
Dishes and laundry rank near the top even though I do have a super good dishwasher, I hate loading the things and putting the dishes away, laundry, it's the folding, ugh.
Generally, I hate housework period.