Eli- Yes, things happen and suitcases can get really wet, but I don't believe this to be the "norm". I would not go to a lot of effort for something that probably will not happen. Do pack your liquids in bags. (I generally double bag for safety and that gives me an extra bag to use on the trip) Anything that could be ruined by water could be put in a bag. After that, I would just throw in my clothes, etc. If something happened, I would find a laundromat and wash and dry my clothes. But chances are you will be fine. I can't remember exactly how Rick Steves put it, but I once heard him say something along the lines of "don't pack for everything that could possibly happen but pack for what you need and than handle the unusual as it happens". (Something like that) Anyway, my husband and I average 4-6 flights a year and have never had our bags get wet. My daughter was coming home from Central America last year and apparently her bag was out in a rain storm and got soaked. However, she just washed up the clothes and it was fine.