we just took lex out every hr and each week we would wait a little longer to let him out. we would praise him and give him a treat everytime. as a young puppy he would have accidents in house if we werent watching him good or he tried running to door and couldnt hold it long enough "our house is 3000 sq ft" but you could always tell if he was on his way to the door or not. he can now stay by his self for 12 hours at times, i know thats long but when we both work nite weekdays he has too, but no messes when we get home!!! he he squats like a little girl never have seen him attempt to raise a leg, which our lab does and he never caught on to it