We borrowed one from a friend for the first few months and used it in the adult bath with one of those seats the others are talking about. Our problem is our house came without a plug for the bath and it is an odd size and we haven't been able to find a plug that fits it. So we bought a baby bath on sale and DS still has a bath in it at 13 mths sitting up. He can't lay down but it saves water as we are only filling the baby bath instead of the big bath and when done you just tip it up so you don't have to carry it anywhere (unless you want to water the plants). It has been worth it for us.