i use a trunk rack -- and use a shoulder strap so easy to take with if i go into a store to/from work.
i roll my shirts, and also keep some "wrinkle free" spray at work to smooth out any pressed marks
i just purchased the trek grocery bag too, google it for a picture. i like it so far (would be perfect for shoes) or shirts and pants if you hand some plastic to put them in (to keep the shoes from getting them dirty)