If you've ever had to move clothes on hangers in your closet, your technique might be to squish them together and throw them haphazardly into your moving truck.
By wrapping them in garbage bags you can keep your clothes organized and make transporting them much simpler.
If you don't have any garbage bags, you can try wrapping them in saran wrap.
Additionally, you can write what category of clothing they are in Sharpie marker ("Formal", "Suits", "Casual", "Skirts", etc.) to make unpacking a bit more predictable.