Thanks for all the input everyone!
By crate train do you mean putting him in there when I can't watch him constantly or do I also need to crate him at other specific times. Louie always goes poop first thing in the morning, but after that I can never be sure. I have tried scheduling his meals, but I can't quite regulate it. How long does it usually take your babies to go number 2 when you walk them? Louie usually needs to go after walks, but I never associated the two. It's a great idea that I will be sure to try.
