You have heard the expression "less is more". It is true of life as well as of design. If you have less things, then you have less stuff to care for. This means you have less clothing to clean and less shoes to polish. Having less possessions means that it is easier to move around. You can travel with less bags and your luggage will weigh less. This will cost you less money when flying. When you arrive with your baggage at the house of friends, they will think that you will be staying less days.
However, having less changes of clothes means that you will need to wash more often. Not washing means you will be less appealing. As a result, your hosts will let you stay less days. They will think of an excuse to un-invite you. You will have one less friend, and you will be thinking of one more place to go. There you have it more or less.