I've been working in a permanent outdoor theater for a few years, and all of this advice proves very true!
Ziplock baggies and little tuppware containers have been very useful for delicate and paper props, and printing checklists and papers on stiffer paper has worked well for the SM team.
Since we are a permanent venue, and pack in our props and furniture each night we don't have to worry about the public getting into our things, which is really great.
Grip tape (with staples) is also a must, as we can get some fairly damp evenings, as well as actual rain, and sometimes dance rubber on shoes and the grit we always have painted into the deck of our set is not enough.
For cold nights we always set out blankets for actors backstage, and for hot days we make gatorade in bulk, and have buckets with ice and washcloths stationed at strategic spots.
BUT! I have a question for the hive mind about prop tables and what to use to write on them!
We have those off-white plastic tables, and leave them outside overnight. So spike tape comes off relatively easy with the heat during the day and damp in the evenings.
Right now we are using spike tape with clear packing tape over, which worked really great through hot days and dewy evenings, but we just had a night where it rained hard. And almost none of the tape stayed on the table.
I have written with sharpie directly on them in the past, but it is a pain to get off during strike.
Is there some kind of large wax paper I should be covering my tables with?
Any ideas?