Our bathroom situation right now is... not the best. For starters, we have only one. In our next house, I'd love to have at least 1.5 bathrooms. James says we need two but I've convinced him to look at houses with 1.5 if they're in ideal neighborhoods.
In addition to having only one bathroom, it's a small one at that. There's room for approximately one body in there, which is why I do my makeup in the hallway, with the mirror I mounted there. A master bath with two sinks would be fantastic.
A nice shower head is a must too. I've replaced the standard shower in almost every rental I've had - although 5'9" isn't that tall, it seems like showers are made for people who are 5'2"... I can't stand having to bend down to wash my hair!
I like calm, relaxing paint colors like blue and gray.