When deep cleaning your house, which room takes the longest to clean?

My answer is my bathroom. For one thing, it doesn’t get cleaned on a regular basis like the kitchen and living room. I mean, I scrub the toilet when it needs it, about once a month, but I’m just not up to the rest any more, except for the occasional lick and a promise. It was different when I had kids in the house, but now it’s just Rick and me so, meh.
So, now I’m deep cleaning and I’ve been working on the bathroom for 2 days. (Consider my cleaning tools include a toothbrush and a tiny flat head screw driver.)
The rest of the house won’t take that long.