I too use the 5 gal buckets for just about everything, Oyster shells, Grit, various other things that are small but not needed on a regular basis... and feed 
But I can lift and take the 50# bags, I just do it when I get home so things are stored neatly.

But I can lift and take the 50# bags, I just do it when I get home so things are stored neatly.