Oh my....I feel your pain!! Snickers used to be the same way when he was younger, now he is pretty much on schedule and thankfully he only poops once a day!!! Snick HATES the cold now, so does his business super quick but we do a few things to motivate him. He knows the word "POOP" and this helps alot. When we say "potty"-he knows to pee, when we say "poop" he knows to poop

. After ROXIE goes tell her GOOD POOP!!!! Also, walk her around the same area...and let her sniff some of her other poops and that should give her the urge too. We do ALWAYS have some poop accidents inside the house every winter!!!!!
Good luck-
Snick & Viv