Some more information.
It is not my intention to make my slave completely immobile. I just want her to be restrained, unable to escape at all times. I was definately allowing her enough slack in her chains to reach the bathroom, even the back garden (I have a large house with a very large secluded garden.)
I was thinking of shackling her ankles as close as possible together, locking her in some high heeled shoes, handcuffs, some kind of body harness of rope harness, etc... she would be able to move around, do some chores, even watch tv if she was allowed.