That's quite a list NCSU! I can see why you are not convinced.
For me I am looking at areas of inconsistency between Brad's various statements and statements also made by others too.
I don't happen to see a 4-hr cleaning binge as something he would normally do (there are several affys that state the exact opposite--I have no reason to doubt the statements made by several people on that matter). Furthermore, in the courtroom we heard the recording of the phone call from Nancy to her father upon her return from HH on 7/5 in which she details what a mess the house is, and you can hear the frustration in her voice as she's going through what she was seeing. This is not something the public has been privy to, as it was only played in court. But there was no doubt about what she said she was dealing with in the house (dishes left in the sink from when she first left a week before, etc, etc.). She was specific in her description. So there's testimony right there from the victim...brought into the courtroom in a very real way, that just so happens to contradict what Brad claimed.
Where I see major inconsistencies I note them (and it throws up a red flag).
It's not that Brad didn't have time to do these various things as he claims that day, it's that his accounts of his activities are not consistent and it's caused that hinky feeling.
Probably not...but it might be something he would do to try and prove himself to her, especially given how mad she was when she returned from HH. And again, I do believe he did what he said he did while she was gone. I just think he is a guy, and our level of clean is significantly different from a females level of clean. But if he still had hopes of winning her back, he could do something like that to prove it to her. Again, I did stuff like that (try to be super husband) when I was going through it 10 years ago.