Hugs BD. I do think that 2 is more than 2x as challenging as 1. I am really lucky in that I have a very high tolerance for mess and dirt (our floor has not been cleaned since my mum left in Feb!!) much to my mums distress (but I think it is one of the greatest gifts she gave to me as I think it has made motherhood 100 times easier). DH also couldn't really give two hoots as long as his stuff is organised. Sometimes I think I should get my act together and sort stuff out but there always something I think is more important/interesting to do, and I also think - ok 6 months and the floor has not been cleaned and what has happened - nothing - no one has got sick, the house doesn't stink - the only time it really concerns me is when someone might come round because I am a little tiny tiny tiny little bit ashamed of it - but generally not enough to do anything about it apart from plan to do it when I get some time.
Yep this is my house