Got nothing to do with embarrassment. I don't do laundry until either I have a full load or I'm about to run out of clean something, either (although that's more likely to be three loads a week than one, but anyway). I'm not embarrassed to have my sweaty clothes hanging to dry all over my closet and bathroom, making them smell like a locker room. But did I mention I sweat? If I throw my sweaty things in the pile without letting them dry first, they will soak through everything else they're in contact with, and reek to high heaven when the whole damp mess gets washed days later. I'm not a particularly stinky sweater, either, when it's fresh. But all bets are off when it's been wet at the bottom of the pile for five days.