Crate training is the only safe way to go IMO...gracie was crate trained day and night...now she is only crated during day hours while I am at work..from 8 - 11 (I come home for one hour) then 12 - 4. She sleeps with us so no longer is crated at night..Yesterday was my last day until Jan 4 ( I work at a school) so she will not be in the crate at all unless I have to run an errand. I plan on getting a doggie play pen so she will have more room when I go back to work. She is ready..she never has accidents any more...and then hopefully by the time she is a year old in May, we will be out of pens all together and just have freedom...but she is a little thing (8 lbs) With your 90 pound baby..and the chew factor...you need a large crate! Is she house broken? Or is it just that she tears things up?