See these gates? Use them to keep your dogs in or out of a room -- looks so much better than a baby gate! Lowes has them in different widths and heights :) Umm, great idea! The baby gates in my house are ridiculous and I'm sick of climbing over them.
vintage doors mounted on barn door hardware. This could be done in place of the french doors we have in our office. It would really save space and make the room more usable (think external pocket doors).