I was building a house, and I found out I do not have much of a choice to cover floors in the bathroom/kitchen, other than traditional rugs/carpets used pretty much everywhere.
We have some resources without much use right now, like reed or kelp, which could make nice floor decorations.
And to expand the idea, some blankets for beds, made from either wool, cotton or a combination of them, maybe? Regular beds can only be dyed as a whole, and don't look awesome nice, so a blanket on them ("used" on a bed to cover it, since we cannot place objects on top of other objects yet) would make them look way better.
Edit: pics a little too modern, but added them only to illustrate the idea