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 wash everyday, so once my stuff is dry, i just put it back in the bag. i have some pairs of dp's old trakkies in there, which will stay in there, so at least i know if i forget a pair of mine, i still have something to wear! i also put in a few pre-preg tops, as well as my x-long singlets. so i should be fine i think!