For 7 nights I packed five outfits for each of us, each in a ziploc bag, except DD's that I could cram 3 tees with a pair of shorts. I planned ahead to fit laundry in our vacation, finding the time was a little dicey but I managed because I didn't actually schedule a time. We ended up washing three loads, one on morning 3 of all the darks, and a day or so later we washed two more loads, the whites and lights we needed out of pure necessity. Everything was repacked in ziplocs for wearing again or simply packing back in the suitcase - worked out nicely and saved a lot of time matching shorts to tops and trying to fit it all in the suitcase.
We did refill the pop-up hamper with the heavy denim shorts I refused to spend money to dry, but that was about all that needed to be washed when we got home. BTW, the ziplocs make unpacking easy too!