How often do you bathe your baby? Mines 5-months old now. And do you soap/shampoo every time? Lotion after every bath?

My sister-in-law use shampoo/soap suitable for babies when my niece and nephew were younger. Bathe once a day and a wipe before they sleep. Lotion after bath for moisturizing effect. Once in a while, she will give them a simple massage as well.