Hi,
The answer is: You put him/her in a crate with a kong filled with goodies a bowl of water and some toy. In the crate, the dog will not eat the house, will not get eletrocuted eating power cable and you will leave knowing your dog is secure.
This is when the dog is old enough as stated in the previous post. When Dax was younger, I left her in a secure room with newspaper on the ground. I left her for a maximum of 3 hours at a time. I work 2km from my house so at first I was comming home much more often. ( yes see peed on the floor, but could not hold it, she was too young. ) After a while, I started to lock her in her crate. she peed twice in her crate as a puppy. So crate does work.
Now it is different, schedule is: leave to work at 8am --> Go in the crate, back at 12pm, let her out and then she sleep a bit on the couch while we eat lunch then we leave (back in the crate) at 1pm and back at 4-5pm.
Also, since you don't have you puppy yet, please read my last post...
http://www.boxerworld.com/forums/sho...16#post1252416
Make sure you are ready to change your life (for the better :-)