You'll be glad you did. Choosing a wardrobe of basics will help you deal with space limitations. Select clothes that will coordinate with each other. Try to stick to one color scheme (black/brown/navy) or select clothes that can be mixed and matched.
Packing loosely wastes precious space and causes clothes to wrinkle.
Make a list.
Your list will prove invaluable in the unfortunate event of lost of stolen luggage, while you are away.
Bring clothing that requires little care.
Wrinkle-resistant, quick drying fabrics are best.
Think of travel activities ahead of time.
Plan your clothes for business, sports and leisure activities.
Check seasonal weather conditions.
Pack a raincoat or warm/cool clothing as appropriate.
More packing and travel tips can be found at: