I like 5 gallon pails.
I get mine from Burgerking.
They smell like pickles but seal tight.:)

I'm thinking maybe I could put the bag in a trash bag, like you were saying, and then put it inside like a rubbermaid tote, or a trach can?

Do you think this would be sufficient?

Deena

Trash bags work...poorly.
As long as you don't try to lift them you are OK.
Getting the cement out of trash bags without getting it all over yourself or putting holes in the bag is a PITA.:)
Why would you need a bag inside a rubbermaid container?

Deenap --- that's exactly how I kept mine for quite a while and it worked even in this coastal Texas humidity. Only thing different these days is a larger plastic tote on wheels that will hold three bags of cement. I use a scoop to measure out the cement I need and avoid doing any lifting except when it goes into the tote. Even then I wait until all three are empty and tip the whole thing over to put the new bags in. I'm not fond (and neither is my back) of lifting cement bags any more than necessary. Any closed container will help. The tighter it closes the better, but most palstic trash cans and Rubbermaid containers don't really come close to "sealing" out humidity. The commercial food grade containers are best at that.

Each to their own I guess.:)
My experience with trash bags was awful.
First you have to reach into the bag to remove cement.
This gets your arm covered with cement dust.
Or you can try to roll the bag down so you don't have to reach inside. This sends a cloud of cement dust into your face.
However a bag of cement in two 5 gallon buckets gives you containers that can be easily carried, under 45 pounds each. They seal very tight and take up little floor space if you stack them. This puts the top container at a great height for scooping out the cement without creating clouds of dust or getting covered in the stuff.

That said I just put my last bag into a single rubbermaid container. I was out of buckets.:)
I can't lift the container so until the weight is down I have to leave it stays where it is...outside.

I wonder if a 48 quart ice chest would work for storing cement?