I'm a HUGE fan of pinterest and found this on their site! I hear it works amazingly...I've copied this right from my pinterest diy board. I've added the link to my pinterest board for you. Good luck :)
Paint it! Thomas' Liquid Stainless Steel can be used on appliances,
faucets and countertops. The water-based resin is stainless steel in
liquid form, and it provides a brushed-stainless look that is as durable
as an automotive-grade finish
And for the bathroom...Our master bath was opened to our room without doors as well, I hung up decorative shower curtains. It kept the heat in the bathroom while showering/bathing and was cute on the bedroom side. I just used decorative curtain hooks to hold them back when the bathroom wasn't in use.