I've just completed an experiment in holiday packing.
I followed a prescribed list for 10-14 days of items and found it to work well. However we'll have laundry facilities along the way and I'll want to add to the wardrobe during one or 2 shopping excursions (in Cape Town and Sandton).
Here is a collection of the sets http://www.polyvore.com/vacation_wardrobe_2013_sets/collection?id=2434414
I now want to repeat the exercise with less items and a budget attached.