That's a great idea to live out of your suitcase. I'd be afraid that I'd forget something though. How do you keep track of what is in there and what isn't?
I just wash more often(every 2 days). Makes it easier as i only have 2 pair of pants that fit me. As soon as its off the line its back in the bag. So really no need to worry about not having enough clothes in the bag.

I did go out and buy new, body wash, toothbrush and paste etc, so i didnt have to worry about packing that.

What i must do now is make a list of the things i cant pack and where they live(if DF or other person need to get them) eg phone charger, camera, ipod, portable dvd player etc.