Mmm yes... hygiene. I'm one of those "must have a shower immediately before getting on the plane" types these days... or at the very least, I carry deodorant wipes. Perfume is overkill and the refreshing wipes airlines often stock are just not enough. And clean clothing is a must. I cannot stand to be seated near people who obviously haven't bathed in the last few days. In some cases, top notch hygiene can override casual dress... and being well dressed does not forgive poor hygiene. Just because someone slapped on a tie doesn't make up for not brushing their teeth.