Mary D mentioned that she took extra socks.
The old joke used to be that if you asked a woman what she carried for extra stuff, she would say "clean socks." If you asked a man what he carried for extra stuff, he would say "dry socks." Different priorities. I guess times have changed.
The comment about toiletries in a stuff sack is normal. One time there was a small backpack group with six guys and one woman. We started up the first steep hill, and within the first half-mile, the sole woman was dragging. At the one-mile point, she was out of sight in back, so I dropped my pack and went back to see if she was OK. She insisted upon continuing and carrying her own pack. The men were waiting at the lunch point about three miles up when she came dragging in, complaining about her pack weight. I lifted it up, and it did seem to be several pounds heavy. So, we asked her if we might examine the contents. She had all of the standard items in stuff sacks, and then there was this big six-pound stuff sack full of toiletries and cosmetics!
With her permission, each man carried about one or two pounds of her stuff, and that lightened her total by six or ten pounds, which was just the edge that she needed to offset the toiletries. After that, the trip was a success.