thats awesome! how cool that you can take her to work

as for leaving her home, I would definately invest in a wire crate.. if you have to, get a lock and lock it up. there are probably crates out there that come with locks, too. give her a stuffed Kong in her crate (definately get her a x-large black Kong!) go to http://www.kongcompany.com for stuffing recipes and info, to keep her occupied while in her crate. Also give her various indestructible toys and a marrow bone, give her these treats every time you leave her alone even if she isn't in her crate, and maybe it'll keep her from chewing the furniture