Going to the airport and flying overseas, one should bear in mind that one is in an airconditioned environment, so that one can wear all the warm clothes such as jeans and a jacket, a good shirt, the heaviest shoes that are being taken on the trip. We only travel business or better. Before we leave I check accommodation to see if there is a guest laundry. If not I find out if there are laundromats near where we are staying.
Taking about three shirts and several changes of underwear is sufficient. Some people would need an elephant caravan to cart their luggage around. I am also not burdened by taking golf clubs. I play golf with my son and his father-in-law in LA where they live and I am able to borrow a set of clubs from my son.