I don't have time to be sad; My two year old is potty-training today, which means I have to jump from my chair every ten minutes or so and whisk him away to the toilet before he pees on the furniture, bookshelves, other babies, etc. :-P
Just put him outside the only worries then are the dog and the neighbors tires.
Sounds like you will be quite busy all day.
We are doing the same thing now, except with our three year old. He backslid when we brought the new baby home. Of course, I say we but I am safely at work at the moment. Good reminder that there are worse things then being gainfully employed.