You can do it. Emilio is 13 months, and Angelo is 4 months. I just find that if I change one, I grab the other and change him too. That way, I only look at the clock once and know what time I changed them both. If one poops, they both get changed again. Worst case scenario, they get changed TOO much (is there such a thing??). I am not looking forward to having 3 in diapers though. (Emilio will be about 20 months, Angelo about 10 months, and a newborn).