I'm planning on getting a lab pup and crate training him. My plan is to take him to work and let him out every 2-3 hrs for the first couple weeks. At some point though, I plan on leaving him at home. When should this happen? My plan for this was to put him in a pen either in the garage or in the backyard. I'm wondering what will be better, the garage or backyard? If I put him in the garage, my plan is to buy a piece of sod for home depot to do his business. If I leave him in the backyard, he would be doing his business on the lawn. thanks