Is bathing a baby twice a day (1 in the morning and 1 in the evening) just fine?

My sister-in-law only bathe my niece and nephew once a day when they were babies. Babies seldom get "dirty" so the general guide is to bathe them at least once a day. When bathing, pay attention to the skin folds or creases, such as those at the armpits, groin and behind the knee, as these are places where dirt tends to gather. Do not overuse bath gel as the soapy water may cause the baby to slip from the hands.