1. Roll your clothes, tightly roll your jeans, t- shirts and other garments that will not wrinkle easily. i was actually given this tip by my mother , she is an expert on being able to fit allot of clothes into a small suitcase.
2.Wear your heaviest shoes, sweater, and jacket. That way, you don't have to pack them.
3. Remember this order of operations: shirts on the bottom, then dresses, then pants.This will help to reduce wrinkles and maximize your space