I've managed to pare down my routine when traveling using a combination of 0.5oz dropper bottles (you can usually find these at health food stores), trail size items (if the container is easily refillable I hoard them) and these little stacking travel tubs. I use the smallest ones. They're more expensive than the cheapo ones but are really good quality and are leak proof.
If anyone has suggestions for 0.5oz refillable tubes let me know. The smallest ones I can find are 1oz. I would prefer to use tubes over tubs for cleansers.