We decided to do a couple things to the Roo.  We are not confident enough to really tear into (or screw into) the outside walls so what we've done can easily be disassembled.

Paper towel holder

[IMG]http://img.photobucket.com/albums/v609/Ladyhawke/Roo%20mods/e78b6625-b80b-4961-9d9e-16c8f07bfc18_zpse5f1d4a0.jpg[/img]

Key/leash holders

[IMG]http://img.photobucket.com/albums/v609/Ladyhawke/Roo%20mods/603c94fd-4ca4-4b3d-84fd-f45fe9b03b82_zpsca996e3c.jpg[/img]

Wardrobe drawers (or affectionately known as junk drawers)

[IMG]http://img.photobucket.com/albums/v609/Ladyhawke/Roo%20mods/7f2802f0-1c5e-4b06-b812-fbe679b2fb7d_zpsbdb2e611.jpg[/img]

Overhead cabinet shelf (goes down three cabinet doors)

[IMG]http://img.photobucket.com/albums/v609/Ladyhawke/Roo%20mods/8c5d7b4e-5e5e-41f4-bee4-82ec4e9abb5d_zpsc36eff25.jpg[/img]

Corner cabinet shelves (before)

[IMG]http://img.photobucket.com/albums/v609/Ladyhawke/Roo%20mods/e472a4d3-9579-4ea7-8ada-c7f4e91db1a2_zps413c4bb7.jpg[/img]

Corner cabinet shelves (after)

[IMG]http://img.photobucket.com/albums/v609/Ladyhawke/Roo%20mods/6d59db08-336b-4b70-a7fa-ec6c7c4eefdf_zpscc323567.jpg[/img]