pretty much every night in our house. Its the toddlers bedtime routine. But if he hasnt done much during the day and we're behind we will do every day other sometimes. NEVER more than 2 days... might just be my kid, but man this boy gets DIRTY :)
My daughter is 10 months old and she gets a bath every night. It's part of her bedtime routine and her hair gets really greasy looking if we don't wash it often. She really loves bath time too, so it's fun for me to watch her splashing around. :)
1-2x per week. Yeah apparently mine is a dirty kid. DH has never bathed him and is a SAHD during the week. Ideally I'd be an every night mom, but some nights I just fail. I know, I suck.
I have seven kids, from 3 to 16 and honestly, it depends on the kid. The three year old and seven year old girls get a bath probably every other night, sometimes third night, but it's play time for them and they like it so we usually don't go that long. If it happens every night, I don't wash their hair every night because we all have very long, very thick hair that tends to look like hay if washed more than twice a week. The 11 year old girl is showering almost every night, because she's at that age and wants to make sure she looks and smells her best. I have four teenage boys, two 13 year olds, a 15 year old and a 16 year old. They are all in athletics and they shower at school every day. On some days, I make them shower again, because four teenage boys can build up a stench so powerful it burns your nose hairs. During the summer, we were in the pool every day and I am horrified to admit there were times they went a week without shampooing their hair. Thank goodness my blonds didn't turn green.