Just got back from WDW! Had a blast but it was definately wet...between rides (beware the Kali River Rapids!) and rain we were soaked the first three days at the parks. We traveled with 6 adults. Some of us chose to just get soaked, some used a heavy, reusable raincoat, some used and umbrella and some used cheapy throwaways. Overall, I think a combo of umbrella and cheapy throwaways worked best. The problem with using disney's rain gear is that everyone looks the same after awhile and it's hard to keep track of your crew. If you don't bring an umbrella WDW sells them everywhere for $9.50 and then just BYO cheap poncho and throw the poncho away at the end of the day. The plus of the poncho is that they're disposable, small, and long enough to keep the parts of you warm that did get wet when you go inside where it's air conditioned. You look dorky and drippy but so does everyone else so don't worry about it. One more rain problem is your feet. After three days of walking around with squishy wet feet several of us had blisters. I used band aid blister block patches and my feet survived fairly well (I was wearing sandals). I've also heard that spraying antipersperant on your feet also helps the rubbing.