What do you use for baby baths? We have a bathing...slingtype seat that I guess is supposed to go in the bathtub? We find it easier to bathe him at counter height though so have been using the kitchen sink. He likes being IN the water but his skin is a little dry, and the sink is challenging since he can't sit on his own. Can anyone recommend a baby bathtub that would keep him partially in the water? It seems most of them keep LO above the water. Thanks!