Underwhere?

I read a handy piece of advice a while back on a forum I frequent and I'm using it on this trip.

I donate my old clothes and had a garbage bag full of stuff in my closet. Prior to this trip I pulled out all the underwear I was going to donate, washed them, and brought them to wear on the trip. Except, instead of washing them along the way, I'm just throwing them out.

It cuts down on your laundry a bit, and creates some room in your luggage on the way home. It's a great idea, I just hope some housemaid doesn't get pregnant. You can get pregnant by wearing the same underwear, right?