The Design Chase: Design Candy

My current country home has 6 bedrooms and 3 bathrooms (2 full and a half bath). There is one bedroom downstairs for which we call the "Toy Room." All of the thousands of toys my kids own are stored in that room. You must walk trough my laundry room (which I'll miss so very much) to get to the Toy Room. Then there is the master bedroom and Miss MD's room as you walk up the stairs. Then you walk down the hall and there is the guest room/upstairs laundry room - all of my ironing, hanging and folding takes place there (whenever that happens... like once a quarter). Then you walk past the kids' bathroom and walk into a huge office area with built in desk and cabinets. I call it the kid area or the kid cave. In this area are the last two bedrooms (and these babies are pretty huge for kid bedrooms and both have vaulted ceilings). The first room is Syd's and the last room is my Justice's room. Even with 6 bedrooms, momma doesn't have an office. The master bedroom is large enough so I was able to corner off an area for which I call an "office." Well, the new place will have less rooms, so as you can imagine, we're downsizing. But... momma needs her office. I'll be working from home quite a bit and I need to have an office. We will no longer have the Toy Room, so with five bedrooms, I am looking to turn the guest room into somewhat of a dual purpose room. Momma's Office most days and the guest room when needed. How does one accomplish this goal? I haven't figure it out yet, but these inspiring photos have my wheels spinning. What do you think?