Nice article from Salon: Dude, man up and start acting like a mom.
I've never been a stay at home dad, but I totally get the shift he goes through at the end. Sure, you can look at things like vacuuming or cleaning toilets as feminine work, but why? At most of the jobs I've held where cleaning toilets was part of the job description, the women generally foisted it off on my because it was, in their words, "gross." And cleaning is really just an extension of other anti-entropic activities, like tightening hinges, or fixing cracks.
And as far as diaper duty goes, what's more macho than haz-mat?