My suitcase is always packed with my toiletries--hair curlers, shampoo, coditioner, hair spray, tooth paste, tooth brush, deoderant, contacts, lens solution, skin creams, cleanser, etc. I find it much easier to just have two set of everything--one for home and one for the road--and never need to unpack.
It is pretty cool to handle things this way. Now packing for a week-long trip takes me about ten minutes. I just need to toss in some underwear, and a few tops and go.