A few days before you're scheduled to leave, make a list of every outfit you think you will need. Revise the list over the course of the next few days, and scratch off anything that isn't entirely essential, that you do not know for a fact you will use. Think about cross-seasonal fabrics in dark, solid colors. If you must take a bulky sweater, consider wearing it on the plane. Wearing the biggest and bulkiest shoes saves room and weight in your bag.
Chances are, they're also the most comfortable.
If they do, don't pack them. Use travel-sized toiletries and bring only essential makeup. Smaller toiletries take up less space and weigh less. Clean out your makeup bag before you go so you're not lugging around unwanted junk. All rights reserved.