I think how often you need to shower depends on where you live and how you live. Here right now, in the middle of summer, with extremely hot and humid weather, you're not going to get away with showering every other day. I can tell a lot of people who shouldn't be are following Mel's lead at the shopping centre nearby - they stink! Really, you shouldn't be able to smell someone from 2 metres away [img]graemlins/idontagreeatall.gif[/img]
. Clearly a combination of not bathing, and putting on dirty clothes. Without air-conditioning, the nights are stifling and you sweat buckets - getting up in the morning and not showering does leave you smelling. Then when you come home from being at work all day you can feel all the sweat and ick on you and I at least don't want to get into my bed like that. I agree that a blanket 'you must shower twice a day or you're ickky' is unnecessary, but at the same time, a blanket 'showering once every other day is plenty' isn't appropriate either
.
I do shower twice a day, once in the morning to wash my hair, because it's easier to style freshly washed and wet, and it helps me wake up better, and once at night so I don't go to bed dirty - we walk our dog in the evenings and especially now, you really get sweaty and disgusting by the time you get home again.
Oh and personally, I find that 'cold water makes your hair shiny' a load of rubbish
. It never made any difference for me (just made my head cold), and since I haven't had a split end in about 8 years, it probably won't make it less damaged either
.