Be careful with the big bags though. I dumped it into a small galvanized trash bin (15 or 20 galoon) and picked it up, moved it a few inches, repeat, etc. Dropped it on my toe! Over a year later, a trip to the ER, and two podiatrists, and it's just now doing much better.
When I have heavy items,,, I use multiple coffee cans. I also use them for not so heavy items.. They are easy to handle, and store on my shelves. ( Inside garage)Maybe it would be better to have the thing that you will store it at sitting up on a pallet, and then dump it in that. No need to be moving it around then and hurting your toes.
In the chicken run, I keep large quantities in steel 33 gallon garbage cans. They are stationary there in an area that is covered and protected from weather. All can lids are secured so no animals can open them at night. Mainly concerned about raccoons.