For those of you who bring the 87cent disposable rain ponchos: Do you bring one for each member of your family multiplied by the number of days at Disney? Or can they be re-used? I like the idea of carrying such light-weight ponchos in our backpack/fannypack rather than our bulkier rain gear (especially since we'll be going during a hot rainy time), but it seems a little crazy to buy and bring 40 ponchos (5 people x 8 days) -- or is it?! (Yes; this is the level of my WDW obsession -- imagine my poor DH having to live with me! lol)