I'm Dressed in Layers for a Reason
How to pack? - There are several tried-and-true methods of packing a suitcase for your next trip. Some people like using packing cube; some prefer the rolling method, and some prefer folding the clothes neatly in the suitcase. I do a mixture of both. I roll everything except pants. Choose the method that suits you best.
Practice packing. - When you have some down time, grab your carryon luggage and practice packing as if you were going on your trip the next day. You will have a fun time trying to minimize your selections while creating multiple looks with only a few tops, bottoms and accessories. This is where one or two easily packable inexpensive scarves and accessories will add that little spark of creativity needed to give your outfits a different look.
What to pack? - Pack in layers! That's the key to efficient packing. With layers you can takeoff or add clothing throughout the day depending on the weather or places you visit. Make sure to pack conservative and fun clothing that's appropriate to meet the guidelines to enter a place of worship, (churches, mosques, synagogues), museums and various historical sites. Worst thing is to wait in line only to be turned around because of inappropriate attire. I have described a few guidelines to help you pack the most basic necessities while saving space to bring back gifts and souvenirs.