In winter in Japan the air gets dry due to cold. There are many pack sheets sold at many stores.
But one of easy and cheap packs many women try in Japan is a cotton sheet pack.
What they use is cotton sheets. They put enough lotion (tonner) on cotton sheets and tear them thin, and then put them on the face. About 10 minutes later they take the sheets and put face cream.
This way brings a moist skin, and it also protects the skin from dryness. Having a moist skin is important for them to avoid aging.