I just booked a (domestic US) trip where one ticket was $79 and the other was $19. Round trip it is $98. It's a three day trip.<p>I can get a backpack for free if it is 14x18x8. Otherwise, these low cost airlines want to charge you for a carry-on. That makes taking any change of clothing difficult. And, the bag charges are about $60 each way for a carry-on. That would over double the cost of my trip!<p>I'm thinking why not:<p>1) buy underwear and socks and even a shirt or two when I arrive, and just throw it away when I'm done. It's certainly less than $120. Could I wear the same pants for three days, sure!<p>2) I could stuff a few pairs of socks and underwear into a fanny pack. I bet I can get that on without fighting with that poor agent.<p>3) I could go to the airport with two bags, one which is a canvas bag that fits inside my backpack that has two changes of clothing. Before I board, I empty all the stuff out, and walk on the plane with three layers. They better not call me fat or I'll sue! Then, once I board, I go to the bathroom, go back to my seat with that bag refilled.<p>Its dystopian but kind of fun.