Thanks, I'll look for those masks. Might consider the 100s.

I found some very cheap "disposable" ponchos, which are just fine for what I need. I have better rain gear in my main bag.

And I think I agree about the meds, I'll just put them somewhere and label the expiration dates. I pretty much decided I'd go through my bag each time the clock needs to be reset for daylight savings time, looking for expired stuff. That's twice a year, which should be often enough