We started off with 2-3 baths a week. Now we give ds one almost every night because he *loves* baths. He is so happy in the tub and loves to hang around and splash (that's a new development

). We don't clean him with each bath, though, and we only wash his hair a couple of times a week. Actually, he really loves having his hair washed, too, and makes the cutest faces when having his scalp massaged.
The only reason we've started the nightly bath is to kind of establish a bedtime routine. It's nice to let him know that nighttime is around the corner. Not like it's helped him to sleep any longer, but that's ok

.