Comfortable, satisfying travel - by foot, mule, motorcycle, commercial air, whatever - means always packing enough and never packing too much.
www.onebag.com is an astonishingly informative and useful site operated by a guy with nothing to sell. He covers the subject THOROUGHLY and while there's a tilt toward air travel the thousands of insightful tips he offers are invaluable to anyone who's had their fill of overpacking. You can spend hours pouring over this site learning stuff you hadn't even thought to wonder about. I have.
Check it out & have fun.