Keep in mind that clothes aren’t necessarily all fabric. They may have metal or plastic parts like buttons or clasps. Belts have metal.
I'm suggesting throwing out the poncho after each bus use. And this is directed towards mobility users. Also, wear disposable gloves to remove the poncho. The sunglasses or even reading glasses can be taken off after leaving the bus. Wearing a brimmed hat will help, too.
Honestly, I believe mobility users should consider using their own transportation, right now. If that's not possible I wouldn't go.
I think in *some* limited scenarios, this course of action would be prudent.
However, the reason that I likely would not go as far as you recommend here,
@Bete, is because at WDW, we are outdoors much of the time, and people (should be) less "concentrated" than say, in a large city like NYC.
Early on in the pandemic, when we knew much less than we know now (which, admittedly, is still not *enough*) I would literally wear 2 sets of clothing, tie my hair up in a scarf, I was covered head to toe if I had to go out - even if I knew I would have a reasonable shot at maintaining the recommended 6 foot social distancing circle. When I got home, I would strip off the outer layer in the garage, pile all that into the washer, start it, and then go and strip down and take a thorough shower.
Not only was it exhausting, but it was not needed, because I was not finding myself in places or locations with a dense crush of humanity.
Disney is working hard - and will continue to do so, from the sounds of things - to make sure that the Parks will *not* become densely packed, and offer the chance for easy transmission of the virus.
Does that mean you are guaranteed you won't get it? No. There are no guarantees *anywhere* in the world, literally.
But, knowing that being outdoors, in a breezy envoirnment means less possible risk of transmission, I do not right now feel the need to go to the lengths that you described above.
Having said that, if we see WDW reopen, and we see people flagrantly disregarding the rules about mask usage, or if we see sudden spikes in cases of people who have visited WDW - then I might consider using the types of measures you described.
But, honestly, if I have to use those types of measures to feel safe at Disney World... I don't want to go. It breaks my heart to say that, but part of why I love to be there is the freedom that I feel, and the ability to relax and enjoy being a kid again.
That's just my opinion. I understand why you might feel like you need to take those steps to be safe, and if that is what you need to do to feel safe, and go to WDW, then by all means, do so. But if I am understanding the most current and hopefully accurate information that is out there about this virus, we might not need to swaddle ourselves in plastic at WDW - unless it's raining.