I have never tried disposable underwear or adult "diapers". But I see a lot them showing up in stores now for seniors with incontinence etc. We carry daily underwear changes when we travel, since we don't like to do laundry in hotel sinks and have damp underwear the next day. I once tried those expensive Tilley ones but didn't like them.
Has anyone found good disposable underwear that is useful for travel? I am thinking that if you were able to gradually dispose of underwear during your trip, it would make the space available for new purchases to bring home.