You're fighting a losing battle! We had Brazilian Cherry floors put in this last year and Drake has carved major grooves in it. We put down beds and rugs and make him lay on them, but he seems to insist on laying right on the floor. The worst is when he hears some animal outside and will try and get up as fast as he can and just shreds the floor. I can just hear it now, his flailing paws scratching big, white semi-circles. You just need to be vigilant and make sure your little girl lays on a bed or a runner or carpet. Hardwood floors, as beautiful as they are, are going to be scuffed, scratched, and dented no matter how hard you try to prevent it. Just do what you can, and then after a few years you will have to resurface them. What kind of wood did you get?