We've traditionally used the same hairbrushes for years, but lately she seems to be getting picky about me using hers...something about my leaving too much hair in hers...
I don't recall us ever using each others' toothbrush, I wouldn't think it would be a big issue in an emergency...
Deoderant is something I have no prob sharing, since I usually shop for that anyway, & I try to pick unscented when I can (I tell her she doesn't want her deoderant to clash with her perfume that she marinates in every a.m.)
After 30+ years of sharing bodily fluids, it would seem to be a non-issue, but I guess as human beans we all like to have a few personnal areas that are sacrosanct...

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