Trying to manage two babies in a tub when you only have two hands is tricky. They're as slippery as little fish in that watery environment. To help keep them secure, plastic laundry baskets make a great bath seats for older babies and young toddlers. They are the right size to contain their little bodies and keep them upright so they don't slide around in the tub. Use them with only a small amount of water in the tub. Use them only with babies who are old enough to sit up.