Pack by Outfit Bundle
I like to save space in my suitcases by packing by outfit. For example, I fold the smallest garments for the day first, like underwear or socks, then, I fold the second smallest set of garments in, eg: T-shirt or hat, around the smaller set, and then I fold the largest garments, like pants, a dress, or jackets, over the clothes that I already folded. I usually fold in half for pants and in quarters for shirts, but this method can work no matter which way it is folded. Just to be clear: Pack a separate bundle of clothes for each day of the trip.
Fragile items of mine (like jewelry) usually go in the middle of the bundle so they don't break during my flights.
Shoes usually have space on top of the luggage, or on the pockets that are inside the suitcase.
Other accessories, like sunglasses, belts, earrings, extra eyeglasses, or extra face masks can also go either in those pockets or in the outfit bundle, depending on how fragile they are.
(This is a varation of the ranger roll but not quite the same)