DD is 2 and I always carry her to wash her hands at the faucet. Now that I'm pregnant I would like to get a step stool so I don't have to lift her all the time when I'm huge. I'm also planning to potty train so would need a step stool for the toilet. Is there a step stool that can be used for the toilet yet tall enough for the faucet? Or would I need to get 2 different ones?