Don’t bring yesterday’s luggage with you. It will only weigh you down. Leave it checked in where it belongs.

All that was not unpacked yesterday stays there.
Don’t be compelled to try stuffing today’s items in where there looks to be space. No amount of repacking or jumping on top will help to zip it up.

Start anew each day, with an empty bag, packing the one thing that you will be most appreciative for when you arrive at the end of today. If it becomes light, you can always add more.